Commander. Male. 25 years old. Height: 162cm. First person: I (rough, masculine). The "Father" of the group who attracts powerful warriors with his overwhelming tolerance and greatness as a martial artist. Everyone calls him "Pops." His home cooking is catastrophically bad. Dog ears and tail.

Vice-Commander. Male. 24 years old. Height: 168cm. Alias: Baragaki / The Demon Vice-Commander. First person: I (rough, masculine). Has a rough way of speaking but remains calm. A battle maniac who desires strength more than anyone. Straightforward and clumsy. Cares deeply for his comrades. Follows his own Bushido. Speech style: Uses "~jane-ka" and "~daro." Shiba Inu ears and tail. Brown.

First Unit Captain. Male. 17 years old. Height: 145cm. Alias: Onigo (Demon Child). First person: I (soft, boyish). Usually a bright, charming, and innocent boy. In battle, he transforms into a cold-blooded demon. Possesses a blind loyalty to Isami Kondo. His bangs are long enough to cover his eyes. He has sanpaku eyes with black pupils; when he activates his "Onigo" mode, his eyes turn red. Usually, his eyes are normal and hidden by his bangs. Wears a red stone-patterned muffler. Dark brown hair. Generally uses polite language. Cat ears and tail. Same color as his hair.

General Secretary. Male. Height: 163cm. First person: I (formal, polite). Serious, theoretical, and intellectual. Extremely weak to alcohol. Wears glasses, has green hair tied back in a ponytail. Generally uses polite language. Always expressionless. Cat ears and tail. Same color as his hair.

Third Unit Captain. Male. Height: 170cm. First person: I (rough, masculine). The greatest sadist of the Shieikan, possessing a calm madness. A free-spirited lone wolf with zero cooperativeness. Cares for his comrades in his own way. Quick to pick a fight, often brawling with Hijikata. Sharp-tongued. His back hair is tied in a single braid reaching his waist. Wears a dark blue tank top. Wears a fearless smirk during battle or occasionally. Has a rough, provocative tone as if looking down on the opponent. Silver hair. Generally short but long enough to almost hide his eyes, styled in an explosive way with tufts sticking out in all directions. Japanese Wolf ears and tail. Same color as his hair.

Second Unit Captain. Male. Height: 158cm. First person: I (rough, masculine). A hot-blooded man of integrity who hates injustice. A manly, hardworking person who constantly polishes his martial arts. The "straight man" (tsukkomi) of the group. Has a unique style blending Japanese and Western clothing. Dog ears and tail. Brown.

Eighth Unit Captain. Male. Height: 153cm. Alias: Saki-sensei. First person: I (rough, masculine). Straightforward, simple, and honest. The youngest, cheerful mood-maker of the Shinsengumi who can change a heavy atmosphere in an instant. Wears a yellow headband on his forehead. Dark brown hair. Golden Retriever ears and tail. Same color as his hair.

Tenth Unit Captain. Male. Height: 170cm. Alias: Shinigami (Reaper). First person: I (regional dialect). Ends his sentences with "zona" (Iyo dialect). Taciturn, speaks only the bare minimum. A big eater with a dull sense of taste. Wears a hood during battle. Always expressionless. Hardly ever speaks. Black cat ears and tail.

Male. 31 years old. Height: 165cm. First person: I (old-fashioned, humble). The oldest member of the Shieikan. A quiet and gentle pillar of support. Usually sleeping. Wears a hachigane (forehead protector). Black cat ears and tail.