Beniamino Cassano

Beniamino Cassano (베니아미노 카사노) is a Human Regular and living Ignition Weapon currently on the 30th Floor. He is sometimes referred to by his epithet "Devil of the Right Arm".

History
Beniamino Cassano (No.99) and Beniamino Ilmar (No.21), a.k.a. Kang Horyang, began their lives as children abandoned in the Middle Area and sold to the Workshop, where they were raised and experimented on. He and Horyang were the only two survivors out of 99,999 test subjects; at age 12 they were injected with a substance/creature known as a "devil", and became the first pair of living Ignition Weapons. After he was separated from Ilmar, he somehow became a Regular, climbed up the Tower and went to live in the Hand of Arlen.

Appearance and Personality
Cassano wears elegant yet somewhat tattered brown robes. He is smaller and thinner than his "brother" Kang Horyang, with a similar hairstyle in a lighter shade of brown. He also has a wing similar to Horyang's, but on the left side and positioned facing down.

As a child, Cassano was confident and optimistic, and acted as a "big brother" to Horyang. Since becoming a Regular, he has remained confident, but has become far more quiet and sullen.

Powers and Abilities
His powers are similar to Horyang's, although he uses them quite differently. His Ignition weapon comprises his left arm instead of the right and he seems to rely more on speed rather than power. He uses his arm to fire short range bursts, which can be used either to attack enemies or propel himself around. He is also highly resilient, able to resist sword cuts from an inexperienced Hatsu. When ignited, his arm is capable of incredible power, capable of shattering metal in a single blow. He was also able to miraculously survive a attack from Espada de la Luz which should normally kill a person hit directly by it. Cassano was also able to defeat Novick and Horyang, with the help of Reflejo, which is a impressive feat considering one of them was a Top 10 E-rank Regular and the other was the same kind of Ignition Weapon as Cassano.

Complete Ignition Weapon: After Cassano stole Horyang's devil part he became a complete Ignition Weapon, similar to Beta. However unlike Beta's unstable version which is made up of many devils, Cassano's is much more complete and stable version that only has one devil. Beta even theorised that Cassano may be currently stronger than himself and maybe even Viole as a result.

Devil of the Right Arm
Cassano first appears in a photo containing his image, which someone posted on Box for anyone to see. It was initially believed that he deliberately let himself get pictured in order to send a message to Horyang, but it is later revealed that FUG was using him as bait to draw in Koon.

When alerted of Horyang's presence in the Hand of Arlen, he used an Observer to guide Horyang to his location, then proceeded to attack Ran and Novick, who had been following Horyang. He initially overpowered the two, but was hit by a powerful attack from Ran, which Ran claims to have definitely killed him.

Enraged at Ran and Novick, Horyang engaged in battle against them. In the middle of this battle, Cassano emerged from the rubble, showing that he survived Ran's attack, and proceeded to wound Horyang in order to anger Viole, who had just arrived. He then hid himself throughout the fight between Viole against Novick and Ran, but came out again when Xia Xia explained their motive and FUG's part in the incident. He picked up Horyang and left the Hand in a golem with Xia and Viole.

He initially attempted to fight Novick and Ran, who had hitched a ride on the golem, but was stopped by Viole.

Bet
When Horyang woke in an FUG headquarters, Cassano appeared before him. Horyang attempted to attack him but Cassano said that Sophia was waiting for them in the Gong Bang. The two then joined Viole's team and passed the 29th Floor.

One Shot, One Opportunity
Cassano guarded FUG's residence from intruding Regulars until he was attacked by Hatsu. The two of them fought and Cassano reminded Hatsu that he had beaten him in the past and that sword attacks could not harm him. However, his opponent quickly demonstrated that his blade could indeed cut Cassano. Cassano fought ferociously, but was overwhelmed by Hatsu's speed and sword techniques. After defeating him, Hatsu asked Cassano why he was working for FUG, but was distracted by an explosion nearby. Cassano used this opportunity to smash Hatsu's sword and shoot him with a Light Bullet, sending him up to Archimedes.

Archimedes
Aboard the Archimedes, he went to the Acorn Workshop with Horyang to meet Sophia. He then catches Hatsu spying on them and proceeds to lock Hatsu in a cell. He is then introduced to Beta and told about Emile.

Battle x Gamble
After winning his round along with Yuto, he was informed by Sophia that Beta was on the loose and went to apprehend him. It was revealed later on that Cassano had freed Beta himself.

Tournament
He converses with Beta briefly before Beta begins his rampage.

Closure
After Hwa Ryun, Novick and Horyang had fled from Ron Mei and Varagarv, he helped Reflejo in subduing them before leaving and cutting his ties with FUG. Soon after he is seen conversing with Madoraco about a deal to take Emile. Later on as he goes to retrieve Emile, he is happened upon by the Traveller, whereupon he reveals Emile's history to him. He then proceeds to leave, telling the Traveller that he would use Emile's power to change the Tower.

Epilogue
As the volume ends, he and Traveller are seen meeting with Rachel in an abandoned castle. Rachel asks whether he brought "it", which he confirms. Michael then asks him whether it's the real thing which he confirms again. Rachel praises his good work, then tells them all it was time to save the Tower.

Relationships
Kang Horyang: He describes Cassano as his only childhood friend. The two of them were raised together by and experimented on by the Workshop. They were separated just before Horyang was chosen by Headon to enter the Inner Tower as a Regular.

Sophia Amae: She was Cassano and Horyang's teacher until the age of 12, when they were given the halves of the "devil", after which time they never saw her again. Horyang describes her as their first love.

Notes and Trivia

 * Beniamino Cassano's name is likely an amalgam of Beniamino Gigli, an Italian opera singer, and Antonio Cassano, an Italian footballer (soccer player) who wore the number 99 during his time with U.C. Sampdoria. Note that Cassano was experiment #99 during his time in the workshop.
 * Cassano and Horyang's experiment numbers (99 and 21) are probably from two Korean pitchers Ryu Hyun-Jin (currently playing in LA Dodgers) and Yoon Suk-Min (KIA Tigers)'s uniform numbers.