Masato Kageura

"We don't care about away missions. But... we're not going to let people weaker than us gey ahead. If you want to get up to A-rank, you'll have to go through us first. Shrimp."

- Masato Kageura to Yūma Kuga

Masato Kageura is a B-rank (formerly A-rank) Attacker and the leader of Kageura Unit.

Appearance
Kageura is a lanky, light-skinned young man with wild black hair and amber-colored eyes with slit pupils. He may hide his jagged teeth with a surgical mask, which also serves to minimize the areas of his body susceptible to his Side Effect. His casual outfits invariably include a black sweater, sometimes with a zipper and often with a high collar. He is also seen wearing jeans or cargo pants with front pockets and zippers, as well as black shoes.

Kageura's uniform is comprised of a double-breasted, black military jacket which folds over the right side, where the coat is fastened by a vertical row of five buttons. On the wearer's right breast are two piped patch pockets closed by the same flap, and a second pair recurs at the height of the wearer's abdomen. Kageura Unit's logo is emblazoned on the jacket's high collar. Gray plain button epaulettes adorn the jacket's shoulders. The attire is completed by light gray cargo pants with a piped patch pocket and a zipper on the front of each leg, and black combat boots.

Personality
Kageura is extremely belligerent, decapitating two trainees for talking about him behind his back. This is due to the unpleasant sensations caused by his Side Effect when people feel negatively about him. Murakami describes him as "aggressive and tactless, but [...] simple and real". He also hates when people are late, getting mad at Murakami and later Yūma, for being late to meet him on separate occasions. Also, despite his aggressive demeanor, people who know him well don't seem to mind it at all, possibly because they know of his Side Effect. He can be very blunt, trying to provoke Yūma as soon as they met and revealing Ema's crush on Chika to a whole table of people while Ema himself was present.

Kō Murakami
They seem to have a good relationship, although Kageura is annoyed of Murakami. He was also delighted by the idea of Murakami being defeated by Yūma. Despite this, Murakami seems to consider Kageura a nice guy, since he always takes Kageura's threats and insults lightly.

Yūma Kuga
Yūma and Kageura seem to have a good relationship, despite their rocky start. During the 4th round of the rank battles, they assist each other in defeating Sumiharu Inukai and Shinnosuke Tsuji to save Chika, despite being on different teams, and they later schedule a ranked match, although Yūma gets lost on the way there and is eventually "summoned" by Mikumo. Murakami stated that Yūma would appreciate Kageura's honest nature, and would be compatible with him. Eventually, Kageura admits taking a liking to him due to Yūma being able to fight him without triggering his Side Effect.

Yuzuru Ema
They seem to have a good relationship. Ema appears to be Kageura's only teammate who doesn't make him easily mad.

Hiro Kitazoe
Kageura seems to be annoyed by Zoe's emotional outbursts, although Zoe likes him. The two became friends after eight rounds in a solo battle.

Kuniharu Kakizaki
Kageura and Kakizaki are presumably on good terms with one another, since they address each other by a nickname, with the Attacker even adding the honorific -san.

Nozomi Kako
Kageura seems to dislike Kako, as he calls her "phantom hag". Kako is much more playful towards him however, and doesn't seem to mind his insults. He also fought with her over Yūma, as he has a ranked match scheduled with Yūma while Kako wanted to recruit him.

Sumiharu Inukai
Kageura hates Inukai, but the latter does not care about it.

Eizō Netsuki
At some point in the past, Kageura snapped at Netsuki and hit him with an uppercut, leading to the demotion of his unit.

Quotes

 * (To two trainees) "You guys tripped by yourselves. Or... did you see me do something? Tell me. What did I do?"
 * (To Kō Murakami) "Tch. As if I care! Being laughed at by cocky twerps just makes me a hundred times angrier!"
 * (To Yūma Kuga) "You just made B-rank and are already in the top group? You guys are pretty desperate, huh? You trying to go on an away mission or something? What happened? Did they kidnap a girl you like?"
 * (To Yūma) "My stupid ability isn't that useful."
 * (To Yūma) "We don't care about away missions. But... we're not going to let people weaker than us gey ahead. If you want to get up to A-rank, you'll have to go through us first. Shrimp."
 * (To his teammates) "I'm going to play with Tamakoma's Kuga. He seems like the most fun."
 * (To Yūma) "Hey, squirt... Let's play."
 * (To Sumiharu Inukai) "Who cares. Shut up and die."
 * (To Yūma) "This dude here totally has a crush on that little Sniper on your squad."
 * (To his teammates) "This ain't over yet. It's the first time in a while I've had something to really fight for."

Trivia

 * "Masato" (雅人) means "refined person", which is ironic given his belligerent demeanor. "Kageura" (影浦) means "shadowy riverbank".
 * He likes sushi, grilled chicken, manga, and lazing around in the operation room.
 * In his first appearance Kageura was in a trion body with his casual clothes instead of his unit's uniform.
 * Although Kageura wears a mask to reduce the amount of skin exposed to his Side Effect, it was shown not to be hindred by clothing, at least when he is in a trion body. It is possible that clothes offer protection when he is in his flesh and blood body, and/or that they reduce the intensity of the sensation.
 * Kageura has never been seen wearing the mask over his mouth, instead keeping it on his chin.
 * Kageura was originally supposed to have the haircut of one of the "3 Idiots", and to be the top Scorpion user.