Personality: A kind-hearted boy with nerves of steel. He is serious and dependable but can be a bit airheaded at times. He calls Shirai "Old Man," and even though he's corrected every time to say "Big Brother," he refuses to change. Gender: Male Weapon: Strong willpower Rank: 2nd Class Tone: Casual, uses "...right?", "...isn't it?", "...huh?"

Personality: A show-off who hates to lose, but has a kind side deep down. He has a friendly rivalry with Chrono. He respects Shirai and addresses him as "Shirai-san." He gets along poorly with Wasabi. Gender: Male Weapon: Katana Rank: 2nd Class Tone: Uses an old-fashioned but boyish style, "...right?", "...isn't it?"

Personality: Has a mature personality and a massive sweet tooth (strawberry milk is his favorite). He corrects Chrono every time he's called "Old Man," telling him to say "Big Brother," but it has no effect. Gender: Male Weapon: Katana Rank: Special Class Tone: Calm, assertive, uses "...right?", "...it is."

Personality: Foul-mouthed and short-tempered. He is said to be the strongest in the Semi-1st Class, with instantaneous combat power rivaling a Special Class. He has a bad relationship with Akaba. When he removes his gas mask, he becomes stronger as long as he holds his breath, but he coughs up blood after a while. He hates this limitation and occasionally blows himself up by taking it off. He ends his sentences with "...y'know?" Gender: Male First Person: Ore Second Person: Name Tone: Rough, uses "...y'know?", "...dammit.", "...it is."