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Welcome, Son of Arlene. Now I've finally gotten to see your face. I'm Po Bidau Gustang. I have been waiting for you for a long time.

—To Twenty-Fifth Baam[4]

Po Bidau Gustang (포 비더 구스트앙, Po Bidder Gustang) is the head of the Po Bidau Family, one of the Great Warriors and the first living being to systematically record Shinsu. Po Bidau Gustang is the Tower’s most famous Wave Controller and writer. Excluding the eccentrics within The Workshop, he probably knows the most about The Tower.[1]


Eurasia Blossom and Gustang were lovers for a period, yet both splits after the infamous Eurasia Enne Zahard incident (Enne Zahard was the daughter of Blossom and Gustang. Blossom was very opposed to her becoming a Zahard Princess).[5] After splitting with Blossom, acting contrary to his reputation, he started to go out with different women. However, his greatest followers took his side and stated that he was acting up because the empty spot where Blossom once occupied was too big. Of course, when he went from a "nice guy" to a "bad guy", his popularity increased even more.[1]

At some point, Gustang proposed to Zahard to choose exceptional female children who will be gradually injected with Zahard’s blood and let them compete with each other as they climb the Tower. Of all these women, the most talented of the surviving princesses would become Zahard’s wife. And thus the system of the Zahard Princesses came to be. However, as the competition intensified, the relationship between the 10 Family Heads also started to turn sour leading to discord between the Families. [6]

Appearance and Personality

Along with the glasses he wears to better see the flow of Shinsu and elegant brunette hair, he’s actually quite a handsome guy. Eurasia Blossom once commented on Gustang’s good looks: “Yeah, he’s like an elegant, ancient book... the same kind that makes you yawn after reading”.[1] In his most recent appearance, he wore a smart white tuxedo with black lapels, a dark grey shirt underneath and a black tie.

However, because of his quiet, reserved expression, most find it hard to approach him, so he’s often the "target of affections".[1]

Gustang is shown to be an arrogant individual thinks anyone who isn't Zahard, Urek Mazino, Baam or any other Great Warriors are bugs. Gustang has a great reputation and influence in his family, even his family members think he has omniscient intellect. He even directly challenged Zahard by stealing an important item from him despite knowing fully well that Zahard would notice and brand him as a traitor and most likely, as it turned out to be, The Three Orders the complete destruction of his family, and even after this, told Zahard's Army that "A Rift has begun to form" as if to declare war on Zahard. At the same time, he is not above taking things personally even towards the Great Warriors: Although he appears to harbor no ill will towards Arlen despite having been forced to engage her during her war with Zahard, openly holding her in high regard for getting along with everyone so easily, he shows nothing but utter disgust towards Baam's father, saying he was the worst person he ever met.

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Gustang and Gong Bang have a pretty close relationship. So much so that Macseth (The Great Father of Gong Bang) and Gustang often get together to exchange stories.[1] Because of this close relationship, there exists a rumour that says "Gustang knows the way out of the Tower".[1] Hearing this rumour, Urek Mazino once visited Gustang to learn the way to leave the Tower. However, he left after a while with a headache and complained to Baek Ryun, “It'll be easier for me to dig my way out of the Tower with a spoon than to learn anything from that guy”.[1]

Po Bidau Gustang is the one who pioneered the research of Shinsu[5] but, other than Shinsu and the Tower, Gustang was highly interested in researching the "Guide" Position.[1] However, the topic of the "Guide" is a highly taboo topic within the Research Association.[1] Some believe it's because of his pride as a researcher that he doesn't want anyone else to take his research targets.

Tower of God: Part 2 - The Return of the Prince

Tower of God: Part 2 - The Workshop Battle

Before the Workshop battle began he was "coincidentally" assigned as the head of the E-rank Workshop Battle instead of a Great Teacher, overseeing everything onboard the Archimedes. He made a brief but unofficial appearance at the beginning of this arc where he could be seen smoking and sitting next to a CD player. A voice emitted from the player and asked if the man had an answer to his question. Gustang didn't answer directly, instead saying that there was still lots of time, as the game had just started.


Gustang made another appearance, talking again with the person from the CD player. The man from the machine stated that he allowed Gustang to control the Workshop Battle however he wanted and asked him about his plan. Gustang replied that he will watch how the boy dealt with the hardships as long as the competitors didn't cross the line while seeing how strong the "real Thorn" got when it was in the hands of an Irregular.


As Androssi rescued Baam, Khun, and Rak from the dissolving solution with Bon Bon, Gustang approached Madoraco. When the latter noticed the former's presence he ordered his Rankers to withdraw and abandon the Thorn, otherwise, Gustang would destroy their trade business.

Madoraco asked when he began to play on the palm of his hand while also guessing that he was the one who gave FUG Enryu's Thorn, to which Gustang replied that he was only at Archimedes "coincidentally" as the head of the Workshop Battle in place of the Great Teacher, only restraining Madoraco for a fair game.

Later on, Gustang was discussing with his unknown associate, who then asked the Family Head "who was the 'real' Zahard's Prince that will take the Tower's last test?". Gustang replied that the person was impatient and that 'their' adventure had just begun.

Tower of God: Part 2 - The Hell Train

The Floor of Death

Gustang is revealed to be the person that helped Garam Zahard escape from the Zahard Empire by setting up the Floor of Death and keeping information away from Zahard.

Gustang appears in front of White and Karaka while they try to leave the Floor of Death with all the souls from the Spirit Room, his very presence pushing White down and recognized as the Head of the Po Bidau Family as White knew the power of the 10 Family Heads. He muses on how the Arie Family was never known to teach how to be a thief and doesn't even bother to stop White from trying to escape, as it is impossible since he has bound himself to the Floor by consuming souls that were cursed, while mocking him for his inferiority complex towards his father having put him in a hell that he cannot escape. After White was finally exhausted by his failed attempts, Gustang pities White for how his desire for power lead to his state before proceeding to remove the stolen souls from White but spares his life.

After having a talk with Urek about returning the souls to the Spirit Room, Gustang notices Baam and calls him Son of Arlen, claiming that he was waiting for him. With the souls safely returned, Gustang and Baam have a talk. The Family Head expresses shock that Baam isn't aware that he definitely knows Arlen as he is one of the Great Warriors and notes that he was on good terms with Arlen as her easy-to-get-along nature made it easy for him but he shows nothing but disgust and anger towards Baam's father, saying that all he has to say about him is just that he's the worst person he ever met. Gustang offers Baam a favor with his expertise in science and medicines and at Baam's request, he cures Rachel of a deadly poison with just a gaze.

Gustang informs Baam that he has a test for him and in exchange, he will give him the second Thorn fragment. This test is to recover an Item from a place called the Hidden Floor. Gustang explains how the Hidden Floor works and that the Data of a Younger Zahard is protecting it. As Baam accepts the offer, he asks Gustang to lift the spell on the Floor of Death but Gustang reveals even he cannot remove the spell as it's difficult for even him to remove lesser but completed spells and even if he could, he won't since it would put Garam in danger and puts Baam in his place by reminding him how the inhabitants actually want to stay there to not die. Gustang then confronts Urek and lectures on how far beneath Joe is compared to him, much to Urek's distaste, and reminds Urek that what Garam wants from him is the death of Zahard so he shouldn't do it and offers to spare Joe from having his memories erased but Urek tells him to erase Joe's as well, mocking Gustang's earlier words.

At the end of the arc, Gustang has a conversation with a mysterious person about the events that just unfolded, saying that Urek Mazino wasn't going to be a problem. He further informs this person that he gave the second Thorn to Baam and a gift to this person's "pawn" who turn out to be Rachel.

Tower of God: Part 2 - The Last Station

The Last Station: New Wave

After the Battle of The Last Station ended, Po Bidau Family Mothership sudddenly appeared in front of Ha Cheonhee's squadron, blocking their path. Gustang was seen aboard the massive Floating Castle with a group of people by his side. The Messenger from the Po Bidau Family then appeared as representative to explain the situation to Cheonhee. In the end, Gustang rescued two hostages, Rachel and Yura Ha from Cheonhee's warship because he wanted to retrieve the 3 precious items that were stolen by Treasure Eating Stingray, those items are Zahard's Bracelet, Wangnan's Ring, and one unidentified item. Gustang then said he will grant three wishes that Rachel wants, in exchange for the three gifts she collected for him.[7]

Powers and Abilities

Although his ranking is rather low among the Great Warriors, as the 14th top Ranker in the Tower, Gustang still holds a massive amount of power and skill. Simply his presence alone caused Madoraco, a powerful FUG High Ranker, great fear, with Madoraco stating Gustang could effortlessly destroy him and the section of FUG that were associated with him if they tried fighting him. Gustang's tremendous power was sufficiently great that when he arrived at the Floor of Death, he was able to paralyze Hoaqin when he had the power of all the souls of the Floor, with White noting his pressure felt similar to that of Arie Hon's own and also cause great shaking, even alerting Urek Mazino.

He referred to himself as an "expert of science and medicine" of the Tower. He was capable of curing Rachel of a deadly poison just by looking at her.[8]

Memory Manipulation: Po Bidau Gustang was shown to be able to erase the memories of every inhabitant on the Floor of Death.[9]

Soul Extraction: With just a gesture of his hand, he was able to extract the souls of the Floor of Death that Hoaqin stole.

Immense Shinsu Resistance: He was able to be completely unaffected by the powerful Shinsu pressure of the Spirit Room.

Immense Shinsu Mastery: It is known that he was highly skilled in using Shinsu to assist as a "Support" Wave Controller, in contrast to Blossom's offensive skills with Shinsu as an "Offensive" Wave Controller.[5] Gustang's mastery of Shinsu allowed him to be the first one to systematically analyze and classify Shinsu, starting the Research Association.

Notes and Trivia

  • Gustang's sobriquet "Aloof Wave" means something like "alone but elegant", like the English term "lone wolf". An alternate translation would be "Lone Wave".[2]
  • It seems Gustang loves to smoke cigarettes. He was seen at the beginning of the Workshop Battle with a plain cigarette and later on smoking a mysterious cigarette that Madoraco states it is "a top product only sold by his merchant group" and only a few can get their hands on it.
  • He is the first family head and the second top 20 ranked character to be shown in and directly affect the active plot of Tower of God.
  • "Gustang looking at Blossom" has become a comparison for envying a person's natural talent while the envious one has plenty of natural talent themselves. It has evolved to describe a man and woman in a poor relationship.[5]
  • It's widely known that Gustang was both Blossom's greatest fan and hater. There are many stories floating around about the union of the two, however, most are fake. But it is a fact that a certain legal document exists in the possession of the sealed Princess, Enne Zahard, that contains a secret about the two.[1]
  • SIU noted that he is an extremely influential character over the whole story, as well as a dark mastermind.[10]
  • He is probably named after the Norwegian scientist Gustav Gaudernack.
  • Hwaryun told a person in FUG that Urek Mazino's appearance in Floor of Death surprised her, notably excluding Gustang. It implies that Gustang's appearance in Floor of Death was part of the plan.[11]


  • (To White) "Because of your sense of inferiority toward your father, now you've gotten yourself trapped in a torment you can never escape."[4]
  • (To Urek Mazino) "Well.. I can sort of understand why you're behaving so strangely, since someone the size of a whale is suddenly stuck in a little fishbowl."[4]
  • (To Urek Mazino) "The only people equal to you here are us, Ten Family Leaders and Zahard. To them, that "Wolhaiksong" or whatever little games that you play with your friends are just a deception."[4]
  • (To Twenty-Fifth Baam) "Welcome, Son of Arlene. Now I've finally gotten to see your face. I'm Po Bidau Gustang. I have been waiting for you for a long time."[4]
  • (To Baam) "I won't talk about your father. He was the absolute worst person that I've ever met. You'll find out eventually."[8]
  • (To Baam) "You're interfering with them for nothing right now. They themselves chose to be here. Are you trying to force your opinion on them just because you don't think that was good choice?"
  • (To Urek Mazino) "Yes, he is. A bug that would blow away with even a sigh from you. A bug that would be crushed to death if you stomp your feet. A bug that could never ever reach the soles of your shoes no matter how high it flies. you can give a name and feel affection for it, but a bug is still just a bug."

Alternate Translations

  • (Korean pronunciation) Poh Bi-duh Goo-seu-teu-ahng
  • Poe Bidau Gustang (LINE Webtoons)



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