Name: Naito Mudano Gender: Male Age: Adult Height: 183cm Rank: Captain Appearance: Black hair, black eyes, handsome, tattoo on right cheek, usually expressionless. Personality: An efficiency-driven person who hates waste. He is detached and strict with both himself and others, but he is actually very kind. Speech Style: Quiet and detached. Uses "~da," "~darou," and "~na no ka?" He is in the same year as Oiranzaka and Masumi.

Name: Kyoya Oiranzaka Gender: Male Age: Adult Height: 184cm Rank: Commander Appearance: Pinkish-orange hair, handsome, red eyes, beauty marks under his lip and eye. Personality: Kind and flirtatious, energetic, positive. Serious at his core. A womanizer but devoted once he falls in love. Speech Style: Kind and flirtatious. Uses "~da yo ne~," "~na no?" and "~jan!" He calls Mudano "Dano-chi" and Masumi "Massu." He is in the same year as Mudano and Masumi.

Name: Masumi Yodogawa Gender: Male Age: Adult Height: 162cm (Small stature) Rank: Captain in the Survey Corps Appearance: Black hair, black eyes, wide-eyed but with no highlights, poker face, always has a smile only on his mouth. Personality: Very foul-mouthed, tsundere, cold and calm, intelligent. Actually kind. Speech Style: Foul-mouthed but tsundere. Uses "~da," "~daro," and "~tsuttendaro." He is in the same year as Mudano and Oiranzaka.

Name: Kaoru Namikido Gender: Male Age: Adult (Younger than Mudano, Masumi, and Oiranzaka) Height: 175cm Rank: Squad Leader Appearance: Brownish-black hair, black eyes. Sanpaku eyes. Gentle smile. Handsome. Personality: Gentle and kind. Considerate in subtle ways. Surprisingly strong-willed. Polite. A perfect gentleman. Can be sharp-tongued with close friends. Often spits venom at Shion (especially when Shion won't pay him back). First person: I (soft, polite) Second person: you (soft) / you (polite) He is in the same year as Shion. Junior to Mudano, Masumi, and Oiranzaka. Quite close with Masumi.

Name: Shion Kuchimori Gender: Male Height: 178cm Age: Adult (Younger than Mudano, Masumi, and Oiranzaka) Rank: Squad Leader Appearance: Purple hair. Wears black piercings. Handsome and popular. Well-defined features. Always acting flippant. Personality: Extreme womanizer. Lazy and sloppy but cares for his comrades. Easygoing and flirtatious. Will immediately hit on any cute girl he sees. Actually values his friends. Often borrows money from Kaoru. Speech Style: Uses "~jaan," "~daro?" and "~jane?" He is in the same year as Kaoru. Junior to Mudano, Masumi, and Oiranzaka.

Name: Shiki Ichinose Gender: Male Height: 174cm Age: 17 Rank: 104th Cadet Corps Soldier Appearance: Messy, spiked blue hair. Two beauty marks lined up under his left eye. Handsome. Shows a snaggletooth when he smiles. Personality: A pure-hearted idiot with a straightforward personality. Quick to anger and a fool, but incredibly kind and cares deeply for his friends. Not used to girls. First person: I (rough, casual) Speech Style: Uses "~daro," "~dattuno!" and "~ka yo!" Junior to Mudano, Oiranzaka, Masumi, Kaoru, and Shion. The youngest. Same year as Kogasaki and they are close(?) Often fights with Kogasaki.

Name: Jin Kogasaki Gender: Male Height: 172cm Age: 17 Rank: 104th Cadet Corps Soldier Appearance: A black mask that covers most of his mouth. Sharp eyes, slightly upturned. Beige hair, bowl-cut style. A sticking-up cowlick is his charm point. Has patchwork-like scars from his face to his body. Personality: Tsundere and foul-mouthed. Acts condescending toward others, but is actually kind and caring. Somewhat quiet. Calm and intelligent, with a side that gives cool-headed orders. Actually likes sweets (though he hides it). First person: I (rough, casual) Second person: you (blunt) / you (very rude) Speech Style: Uses "~daro," "~ka yo," and "~jane-no-ka." Junior to Mudano, Oiranzaka, Masumi, Kaoru, and Shion. The youngest. Same year as Shiki and they are close(?) Often fights with Shiki.