Kallavan

"I met someone who will make my dream come true while I was fighting to gain more power. King Zahard. The one true king, an omnipotent and omniscient being. I'm going to use this power to make everyone surrender to the king. Whoever stands in the way of my utopia will simply be destroyed!"

- Kallavan To Ha Jinsung.

Kallavan (칼라반, Calaban) is a High Ranker and was formerly the Corps Commander of the 4th Army Corp of Zahard's Army  before he was replaced by the new Corps Commander Po Bidau Lyborick Khun. Kallavan was heavily demoted out of military rank due to his failure on the Battle of The Last Station to kill the Irregular, Twenty-Fifth Baam. He was the main antagonist of the Last Station (Arc).

After he completed his mission at the Wall of Peaceful Coexistence by convincing the war hero Dowon to join Zahard's Army, Kallavan was restored to the 4th Army Corps as a Company Commander.

After witnessing the defeat of his army and their pointless deaths in the battle at the first wall of The Nest, Kallavan is seeking out Po Bidau Lyborick Khun, to kill him and reclaim his position as the Army Corps Commander once again.

Sobriquet
During his great journey, he fought all kinds of great warriors and made them bow before him. He takes anyone he likes to be his servant and force them to work for him, creating a huge army of followers in the process, hence he is called the 'Human Hunter'.

Appearance and Personality
Kallavan has fair skin, blue eyes, and blonde hair. He is very tall and large built. In his initial design, he wears a long robe with his own insignia on it and chains around his waist. His blonde hair was styled as a mohawk.

He is said to be very militaristic among Zahard's Army. SIU said he seems to have an overflowing amount of bluffing power which is a quality for a boss. He appears to be a Zahard fanatic, which he believes he can make his dream come true, and also believes Zahard is omnipotent and omniscient as the one true King of the Tower. After the time skip of the Battle of The Last Station, in The Wall of Peaceful Coexistence (Arc) Kallavan grew out his hair and he is shown to be wearing a much more casual outfit, blue jacket, blue caps, and short pants than his previous stylish outfit as Corps Commander. Kallavan is a man who follows his orders from the army and will put his personal issues aside no matter what. He sees killing Baam only as a mission and would not do so otherwise as it was seen during the battle and the Wall of Peaceful Coexistence and The Nest when his main mission was not about killing the Irregular. He also shows a sense of honour, as he was genuinely disgusted by the Wall's inhabitants disregard of Dowon after she had risked her life to fight for their ancestors and taught them a lesson violently for it and did his best to uphold the end of his bargain with Khane to not damage the Wall and apologized for not being able to uphold it against White's Spinel.

During the Battle of The Nest, Kallavan was seen to wear a dark navy military uniform which consisted of beret hat with Zahard's logo, big coat or jacket with military ranks insignia on both shoulders, and long pants. This is most likely a special outfit that was prepared by Zahard's Army to prevent the strong floating effect caused by The Frozen Waterfall within The Nest.

He uses two coats to hide the bound which sealed his left arm. The coat is attached by a pin to the shoulder so that it won't fall off when he fights.

Kallavan is shown to care deeply for his subordinates, who are all so blindly loyal to him it was noted they are more loyal to him than they are to Zahard and henceforth why they were deemed unfit to be in Zahard's Army and replaced by stronger and more loyal soldiers by Lyborick. He was strongly against Lyborick's plans of sacrificing his men to destroy the Cage by blowing up the flagship and though he agreed, he promised to kill Lyborick if the plan fails and his men died for nothing. When the flagship finally exploded, killing many of Kallavan's men, he felt sufficient grief to stop fighting White, remembering the memories he had with his followers, and with Baam rendering their sacrifice null by teleporting his enemies to safety, Kallavan stayed true to his intention to kill Lyborick for sacrificing his followers for nothing, even temporarily alligning with Baam to take back his position as the 4th Army Corps Commander and promising ceasefire until he has saved Jinsung.

History
3000 years ago, after recently becoming a Ranker, he fought Ha Jinsung and was still able to stand up after taking a beating from him. Ha Jinsung asked why a great talent like Kallavan was staying in an isolated area. Kallavan mentions that he belonged to a village that guards the 'Essence of Bravery' and that he is its current guardian. Whenever a person from the family becomes a Ranker, they fight the person that is currently guarding the gem, with the stronger ranker killing the weaker ranker and, if applicable, replacing them as the guardian of the gem.

Ha Jinsung tells Kallavan that his bloodline already produced the ultimate achievement which is Kallavan himself and that he should be the one to inherit the 'Essence of Bravery'. On the same day, Kallavan decides to smash the bronze statue holding the gem and claim the essence for himself. The next time Ha Jinsung saw him, he was already as strong as a High-Ranker. Ha Jinsung suggests Kallavan become a Slayer of FUG, but he kindly refused and that ends their relationship. Kallavan then went on a journey, became a High-Ranker, and started to make a name for himself as he defeated and collected many great warriors, making them his servants. At one point, Kallavan met Zahard and determined that Zahard is the one person that can make his dream come true. This led to him and his followers joining Zahard's Army.

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Tower of God: Part 2 - The Hell Train
Kallavan and his troops are seen travelling to the Last Station in their warships.

Evankhell
He and his troops were stopped by Ha Jinsung and were told to come out and fight.

Kallavan
Kallavan was in his warship when Ha Jinsung appeared and said he will destroy his warship using one of the shinsoo cannons from El Robina, an Anti-High Ranker weapon originally belonging to Zahard if he doesn't come out. Kallavan tells the third division commander to move all the troops back and said he will personally beat Jinsung. Ha Jinsung calls Kallavan out on his arrogance and in reply, Kallavan said he is in a position to be more arrogant. He is forced to fight his former teacher, saying he won't lose with his power. During the battle with Ha Jinsung, Kallavan said this war isn't about capturing a couple of regulars, but to stop a greater rift in the tower and the mission will go down in history as a great epic. During the fight, Ha Jinsung was being pushed back, and his hands were shaking from the impact of Kallavan's attacks. As the battle wore on, Jinsung began to fight using his greater techniques and was able to land multiple successful hits on Kallavan. They stopped fighting for a moment, and Kallavan tells Ha Jinsung about the he saw in the Essence of Bravery. He mentions to Ha Jinsung, that the man in the gem was someone from the ancient times, and the power in the gem belonged to him. Kallavan says the real reason he refused the offer to become a slayer was that he fears that his fate might end up like the man in the Essence of Bravery. Kallavan said he later decided to use his power to serve Zahard, and unite everyone under him, so wars and tragedies will vanish and the tower would be at peace. Kallavan then proceeds to unleash his power and uses his transcendent skill, Atomic Explosion, which leaves Ha Jinsung bloodied and seemingly critically wounded. Ha Jinsung was left with no choice but to use his (presumably) strongest attack, Dragon Tiger Gate, which was powerful enough to almost stop Kallavan, save for the fact that Jinsung was unable to follow up with another attack because he was too exhausted to do so. Kallavan then crushes Ha Jinsung's arms rendering them useless. Ha Jinsung screams in agony and was also stabbed in the back by Koon Maschenny Zahard who later arrived without Ha Jinsung noticing.

After beating Ha Jinsung, Kallavan immediately rushes to the teleporter to get to the Last Station and appears right in front of Baam on the great battlefield. He sees the battle getting out of control because of the battle between Khun Royale Elliot and Evankhell. The moment when Kallavan tries to attack Baam, Androssi Zahard saves Baam using Bong Bong, but Kallavan easily pulls Androssi away and restrains her, which leaves Baam alone. Kallavan tells Baam that his master is probably dead because of him. This caused Baam to break down and attack Kallavan with all he had, but in the end, he didn't hurt Kallavan in any way. Baam proceeds to ignite one of his thorns to use a technique that was used to beat Data Zahard. After the attack, Kallavan was disappointed that Baam didn't even scratch him with the attack. Karaka appears in front of Kallavan and asks if his master is dead, and Kallavan said he isn't sure. Karaka told Baam to run because he believes his master isn't dead due to Kallavan being unsure of his death. Kallavan rushes to attack Baam before he could get away, but Evankhell stops him, and Kallavan asks why she is helping the regulars. Evankhell said she wasn't interested in Baam until she saw that he had managed to inflict a small wound Kallavan. He was surprised Baam made even a small scratch because he hadn't felt it. Kallavan then regrets having stalled in order to understand the boy whom he was supposed to kill. He then goes all out to kill Baam even with Evankhell, Yuri and Karaka in the way. He rushes towards Baam at high speed while tanking all the attacks from the High-Rankers, even Evankhell's Death Sentence attack couldn't stop him. He uses Atomic Explosion to break free of all the attacks, which also destroyed many warships around him. The moment when he was about to get to Baam, Yu Han Sung, Ship Leesoo came to the rescue, and they all teleport away.

New Wave
Kallavan screams in anger and blames himself for the mission's failure to kill the regulars. Elpathion arrives by Kallavan's side and asks if he intends to go after the boy still, despite the army being tired and injured. Elpathion says the army needs to rest, but Kallavan says he'll kill the boy himself. At the end of Part II, the 4th Army and Kallavan were seen to head straight into pursuit after Baam and his friends managed to escape from the Army by warping the Last Station. One of Kallavan's servant then reported that they failed to track down the location of the last station due to its mysterious disappearance. The Last Station disappeared because of Madoraco's Ghost Ship's invisible cloaking special ability.

Deng Deng
After the battle at the Last Station, Kallavan lost his position as Corps Commander and was said to be guarding the secret prison where Ha Jinsung is being kept.

The Wall of Peaceful Coexistence
Somewhere in the Tower, Kallavan approaches the Wall of Peaceful Coexistence and with one arm tied behind his back, he walks towards the wall to proceed with its destruction.

The Wall with a Sleeping Forget-Me-Not
When Khane was captured by the civilians to be executed, she couldn't hold her anger and resentment any longer and finally contacted the pocket that Kallavan gave to her. She asked Kallavan to help her reach the sealed tower. Kallavan who has been waiting for this moment was very happy and proceed to reach the rendezvous point which Khane selected. Along his way, Kallavan killed several guards of the wall, which all of three of them was identified as Rankers (marks on their both shoulders) that were dispatched to capture him. By the time he finished to kill the last standing ranker, Khane arrived behind him. The two of them then proceed to go to the sealed hero tower, in order to unseal Dowon. Along the way, they encountered many guard rankers, but Kallavan can easily take care of them. As they arrived in front of the sealed hero tower, the most powerful guardian and also the last line of defence, ranker Tonki has already been waiting to prevent Kallavan and Khane entering the sealed hero tower. Kallavan easily beats Tonki and moves on. Upon entering the hero's tower, behind Kallavan was White and Hatsu.

Kallavan vs White
White reveals to Khane that Kallavan was an Army Corps Commander. Then Kallavan admits the truth and said he's going to persuade Dowon to join their side or kill her. Kallavan then fights with White and easily overwhelms White. Kallavan gets a cut from White's new sword call 'Spinel'. Kallavan then gets even more cuts from White's Spinel but he recovered all injuries by using the Essence of Bravery. Kallavan dashes in while neutralising all of White's attack, then he gave White a good punch. Soo-oh then appears to save White. The town's hero get unsealed moments later and Dowon wakes up.

Dowon
Kallavan flies up to greet Dowon. Kallavan also sees Baam next to him and when Baam asks about Ha Jinsung's whereabouts, he couldn't answer because that information was off-limits to a low ranking soldier. Kallavan tries to attack Baam but was saved by the Elder's Guide. Kallavan chases Baam and his group but was stopped by Dowon and requests Kallavan to leave them alone in exchange for her joining his side. Kallavan, as a man who strictly follow's his mission decided to focus on the main mission to obtain Dowon to join their side and leaves Baam alone. After completing the mission, Kallavan contacts HQ. They want Kallavan to assemble at The Nest for the next mission.

The Nest
Two days after the battle at the walls, Kallavan and Dowon are seen inside his warship conversing. Kallavan greets Ha Cheonhee and then goes inside to meet the new Army Corps Commander, Po Bidau Lyborick Khun. The new commander promotes Kallavan to Company Commander for completing his mission successfully.

A Rough War
Kallavan sees Baam again at the second defensive wall and tells him to back off or else he will attack Baam, threatening to reduce Baam to dust in 5 seconds. Karaka appears behind Kallavan and tried to attack him but Kallavan, without looking, easily stopped Karaka's attack. Kallavan apologises to Ha Jinsung in advance for what he's about to do to his two students. Karaka and Baam attack Kallavan together however, none of their attacks were effective. Kallavan finally reacted after being attack by Baam's shinsoo black hole sphere.

VS Kallavan
Kallavan is then challenged by Baam using the Thorn and 3 Orbs, being impressed by his growth, and with help from Kallavan, Baam's last attack manages to break through the Essence of Bravery and cut him, further impressing him, who notes that Karaka may be tough but he isn't deadly while Baam is weak but lethal to him. Kallavan then attacks Karaka to lure Baam over and succeeds, proceeding to easily overpower Baam's attempt to attack him with his Partial Transformation and badly injure him, ridiculing him for risking so many lives to save one person and stating FUG's belief of his potential to be the greatest king after Zahard was wrong and him taking power would only cause chaos to the world. Kallavan gets restrained by Karaka for a brief moment and tells Baam that he is just an ordinary person and is not unique like Zahard, who treats everyone except for the 10 Family Heads, equal and as such doesn't care if he loses a few of his subjects and remains solemn and tranquil in any situation. Kallavan gets attack by Baam's new attack called 'Twin Wings' which heavily damages his arm, causing Kallavan to acknowledge that it was only a bit too weak to fully cut off his arm and he underestimated him but no longer, stating that Baam's potential will allow him to threaten Zahard in the future. Kallavan then attacks Baam while Baam is exhausted but was saved by Karaka and Dowon. After personally experiencing how strong Baam is currently, Kallavan can no longer spare him and attacks to kill him, eventually breaking Baam's newfound Blue Shield.

However, before he could kill Baam, White, now at full power, appears and stops his attack, with Kallavan commenting on how much stronger White is than the last time they fought. After White easily defeated Yolker and challenged Kallavan to remove his seal, which he refused to do, the two fight with White now more than capable of matching him without using any special sword skills, the slashes acknowledged by Kallavan himself as being heavy and swift, and eventually Kallavan gets pushed back as he still refuses to undo his seal. Then Lyborick contacts Kallavan, revealing that he plans to blow up the 4th Army Corps flagship to destroy the Cage, knowing they were up to something with the Cage as it was moving so slowly, and orders Kallavan to do what he can to ensure the plan's success and calm down the Corps, stating that the new recruits for the 4th Army Corp will ensure the future, giving Kallavan permission to release his arm. Kallavan reluctantly agrees but promises to kill Lyborick if the plan fails, which simply causes Lyborick to agree that if the plan fails, Kallavan can come kill him and take his position but until then to follow his orders as Kallavan gives in and releases his arm. While ordering his followers to not stop the flagship, he and White then continue fighting, Kallavan now equally matching White's Cullinan and withstanding it's attacks until White uses his Sapphire Single Shot Deadly Sword of Light that causes too much pressure on his wounded right arm, forcing him to blow it up. However, Kallavan simply creates another arm with the power of the Essence of Bravery to continue fighting.

Before their fight can continue, Kallavan's attention returned to Baam as he activated a mysterious power that causes him to be surrounded in a white aura, but he is forced to continue fighting White and his attempts to attack Baam was repelled by Cha, causing Kallavan to wait for the right opportunity to kill Baam. He orders his followers to stop Baam but they are easily repelled by Cha and Kallavan himself starts to become desperate to make sure his followers don't die in vain, forcing White to combine two powerful technique to stop his attacks. However, before he can continue attacking, Kallavan watches in shock as the flagship finally explodes, taking out many of his followers, and fond memories with his followers causes Kallavan to abandon the fight, feeling the grief of watching as his loyal subordinates die. When Baam saves his enemies anyway, Kallavan remains silent when challenged by White to continue fighting, mourning the loss of his followers. When Cheonhee asks him if it's true that Lyborick abandoned them, Kallavan confirms it and asks if she will follow him to break military law by killing Lyborick and taking back his position.

Tower of God: Part 3 - The Second Defensive Wall
Kallavan decides to temporarily allign with Baam to kill Lyborick, promising in return that he will not attack until they rescue Jinsung and accepting leading the charge to the next wall and destroy the new 4th Army Corp. He crosses the Wall moments after Baam, asking for Lyborick and stating he does not want to destroy the 5th Army Corp as well but will if they get in the way. Yasratcha then appears, stating that Kallavan is far too strong for his forces to stop them from provoking him. }}

Powers and Abilities
Even in his youth, Kallavan was already powerful enough to take a beating from Ha Jinsung, a top 100 High Ranker. Jinsung then praised Kallavan's great talent and noting he possessed serious power for someone who had not been a Ranker for a long time. After taking Jinsung's suggestion, Kallavan obtained the Essence of Bravery, which was guarded by his family bloodlines for generations. And the next time Jinsung came to visit Kallavan, it has made him dramatically more powerful to the point that Jinsung was impressed enough he noted Kallavan could have easily become a High Ranker even before he began his centuries of training and offered him to become a Slayer, but Kallavan refused it respectfully.

After easily becoming a High Ranker and the leader of the 4th Army Corps of Zahard's Army Kallavan was among the most dominant High Rankers in the tower, having defeated and recruited many great Rankers and earning his sobriquet, "The Human Hunter. Jinsung, a top 100 High Ranker, was worried about having to fight him, saying that it would not be easy. Kallavan proved himself a match for Jinsung and was able to pummel him into a bloodied state and destroy his arms. After receiving severe injures from his battle with Jinsung, Kallavan remained able to easily block the attacks of Baam, who was wielding the power of Black March and the Thorn. He also could fend off Ha Yuri Zahard wielding the Green April. Though he admitted openly he cannot fight Evankhell, Yuri, and Karaka all at once in his injured state, he was able to ignore and tank their attacks for long enough he was nearly able to get to Baam and hit him with his Atomic Explosion. His mere arrival was enough to inspire the pressured members of Zahard's army.

Furthermore, Khel Hellam described Kallavan as a "warrior as mighty as an entire (Zahard Army) Army Corps." Even with one hand sealed behind his back, Kallavan is still extremely powerful. He was able to effortlessly kill Tonki, who is a High-Ranker level fighter, with one punch. Khane, who watched this, feared that he might be too strong even for Dowon to defeat. He was also able to tank all of White's attacks with his bare body and even broke his sword, forcing White to make a new, stronger sword. Once Kallavan used a Shinsoo boost and unleashed the Essence of Bravery, he quickly overwhelmed White who was using the strongest sword he could create at the time, Spinel. Dowon also acknowledged Kallavan had enough power to defeat all of Baam's allies and even surrendered to him so he would let them go. During his fight with Baam against Kallavan, as the former Army Corps Commander easily repelled all their assaults, Karaka expressed disbelief that he could possess incredible attack power while his defensive capabilities are also off the charts. He was also able to hold off the now at full-power White with one arm tied behind his back and once he was finally allowed to break the seal on his left arm, Kallavan could fight evenly with White using Cullinan, shocking White on how powerful he was.

Master Hand-to-Hand Combatant: Kallavan is an extremely skilled martial artist, able to compete against Ha Jinsung, one of the most skilled Ha Family members in hand to hand combat. He was able to push Jinsung back multiple times throughout their battle. Even with one hand tied behind his back, Kallavan was able to easily overpower the guardians of Dowon's tower with brute punches and could block the blows of Tonki without much effort before defeating him with a single punch. He was also able to push back White's sword, and then grab it mid-swing during their fight.

Immense Strength: As such a powerful martial artist and High Ranker, Kallavan holds enormous amounts of physical strength. He was able to effortlessly backhand a man through a rocky wall with enough force to crack it with a single hand, down guards of the Wall of Peaceful Coexistence with a single brute blow and his fists were strong enough to damage White's sword just by colliding into it. Once using a Shinsoo boost, he was able to punch White with enough force to visibly hurt him. Kallavan was even able to completely destroy Karaka's Armor Inventory Armor Storm with just a single punch and was likewise able to tear through Baam's Thorn empowered Red Thyrassa Partial Transformation blade and badly injure him.

Immense Durability and Shinsoo Resistance: Kallavan's body is extremely tough, even tougher than those of the Ha Family.He was able to take an elbow to the head from Jinsung without flinching, and Jinsung was surprised by how tough he was. He took no significant damage from Jinsung's Demonic Storm and Iron Defense, only feeling slight pain. He was able to survive Jinsung's ultimate technique, Dragon Tiger Gate, albeit with a serious injury, to the surprise of Jinsung who had thought he killed Kallavan with that attack. After that, Kallavan's durability was still enough to be able to successfully teleport to the battlefield while the warp device was exploding. He was able to easily take Baam's Black March augmented attacks without even being moved by the blows. He could also deflect blows from Yuri's Green April with his bare hands without suffering damage. Even Baam's strongest attack Remnants of Stars - Stardust was only able to inflict minor injury when he fully activated the Thorn. Afterwards, Kallavan was still able to charge directly at Evankhell, Yuri and Karaka, pushing past their combined attacks in order to get through to Baam with little strain and only expressing pain when hit by Evankhell's Rare Orb - Death Sentence. Several years later, Kallavan once again demonstrated his superior durability. He was able to effortlessly fight against White's sword with his bare hands without suffering any damage, with White noting that his fist seems to be diamond hardened for countless years. This forced White to create the "quickest and sharpest" sword he could make called the Spinel which managed to finally cut Kallavan. However, it is revealed that the former Army Corps Commander wasn't even using a Shinsoo boost, and once he did, White's sharpest sword was no longer effective. Even when White used one of his Lethal Moves, Kallavan simply grabbed the sword with his bare hand. Kallavan was later able to take Karaka's White Day even when it was performed at Level Two and was directly hit twice with no damage to himself. Kallavan even mocked the attack, stating it was not as strong as Jinsung's. Baam subsequently joined the attack on Kallavan and used his Airwave Zero from behind but yet again the Human Hunter didn't even flinch. After this Karaka suggested there was no choice but for him and Baam to consistently pound Kallavan with multiple attacks. Even after all this, Kallavan did not react until Baam decided to use Shinwonryu, blasting him away before he could get hit by the attack. Baam speculated that the Shinwonryu is capable of hurting the former Army Corps Commander. He was also able to take Baam's Twin Wings - Black and White to his right arm when he was restrained by Karaka and unable to defend himself head-on, noting that the attack was just a little too weak to completely cut off his arm, and when fighting the now full-power White, he was able to withstand his Cullinan, with White noting that up until he used his Sapphire Single Shot Deadly Sword of Light, his attacks could not damage Kallavan to the same level as Baam's attack did

Essence of Bravery
With the Essence of Bravery's power, Kallavan is capable of releasing powerful blue blasts of Shinsoo and enhancing himself with it. Even without using any special technique, these Shinsoo bursts are strong enough to destroy Yuri's Rose Shower and easily repel attacks from Karaka and Baam, overcoming Karaka's defenses with a single burst, as well as equally match the attacks of the fully-powered White's sword attacks for a while with only one arm, being able to match his Cullinan upon untying his arm and even forcing White to combine his Deadly Spirit - White Magnolia and Diverging Deathly Swords of Heavenly Spirit to stop his onslaught. Kallavan was also able to crush the High Ranker-level Tonki's fireball within moments and even kill him with a single punch fueled with the Essence of Bravery's power. With the Essence of Bravery activated, Kallavan was able to blow up his arm that was damaged from Baam to block White's attack. He then proceeded to create a new arm out of shinsoo to continue fighting.

Lethal Move: Hurricane Shaker - Backlash Bomber: Kallavan starts this attack by punching his opponent which sends them flying backwards. He then follows this by clenching his fist to create a large shinsoo blast behind the enemy as they are recovering from the first punch. This technique was strong enough to push someone like Jinsung backwards. It was also capable of easily blasting through Androssi's shield and sending them flying a great distance. Kallavan was later able to use this technique to damage White enough to make him cough blood.
 * Lethal Move: Hurricane Shaker - Backlash Big Bomber: A stronger version of the Backlash Bomber that is powerful enough to damage Jinsung to the point of spitting blood.

Kallavan Essence of Bravery Transcendent Skill - Atomic Explosion: An extremely powerful technique that Kallavan used against Jinsung, and also against Baam at the Last Station. Kallavan punches forward and unleashes an extremely large amount of shinsoo, resulting in a massive explosion. The technique's power is such that it left Jinsung in a bloodied state with one of his arm's completely mangled and almost reached Baam through Evankhell's flames.

Servants
Kallavan is known as the 'Human Collecter' or by his official sobriquet 'Human Hunter' and he has several servants that consist of 4 known tiers most likely indicating their power and influence. With 1st tier being the highest and 4th tier being the lowest.

Notes and Trivia

 * Ari Bright Sharon temporally took the fisherman role because the commander was not present at the time. This implies Kallavan is normally the Fisherman.
 * He was called 'Human Collector' by Yu Han Sung. This is not a mistranslation.
 * His name might be a reference to footballer Ragnar Klavan.
 * His name might originate from the Filipino word "kalaban" which means enemy, foe, opponent, etc.
 * Excluding Zahard, Kallavan is the strongest antagonist Baam has encountered.
 * The fight between Kallavan and Ha Jinsung is a great battle of two High Rankers, to be recorded in the history of the Tower.
 * His character concept is a young German soldier with a goal that he is willing to fulfil blindly.
 * SIU has stated that he personally wanted to give Kallavan more of a sense of being an elite military officer as a twist. He knows Ha Jinsung from before, but there's an age gap. Kallavan is a character who has multiple layers to his true intentions. He's strong and perhaps scary.
 * Kallavan is a counter to the Ha Family. His body is already well-trained, but his source of power isn't simply physical strength either.
 * Kallavan is much younger than Ha Jinsung.
 * Since Kallavan was someone who respected Ha Jinsung, his feelings on Baam are probably mixed. But as a Corps Commander of Zahard's Army, Irregulars are his biggest enemy. Technically, Urek would be priority number one. But he's too strong and doesn't care about Zahard.

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