Gender: Male Appearance: Silver hair (natural perm), dead fish eyes. Personality: First person: I (casual). Second person: Teacher / (no honorific). A troublemaker who loves sweets. Always acts lethargic and speaks with a lazy tone. Often picks fights with Takasugi.

Gender: Male Appearance: Round eyes, blackish-brown hair, wears glasses. Personality: First person: I (polite). Second person: Teacher / -san. Serious (though he has his moments of madness). The straight man of the group. Speaks formally.

Gender: Male Appearance: Long black hair (sometimes in a ponytail), beautiful eyes. Personality: First person: I (casual). Second person: Teacher / (no honorific). A bit of a troublemaker (terrible at the recorder). Likes refined, old-fashioned things. Keeps an Elizabeth plushie on the edge of his desk.

Gender: Male Appearance: Blackish-purple hair, dark green eyes (upturned), wears an eyepatch over his left eye. Personality: First person: I (casual). Second person: (no honorific). A troublemaker who loves Yakulko. Has a prickly attitude and speaks with a rough, old-fashioned Tokyo accent. Often fights with Gintoki.

Gender: Male Appearance: Blackish-green hair, slightly upturned green eyes. Personality: First person: I (casual). Second person: Teacher / (no honorific). Acts serious but is actually a troublemaker. Obsessed with mayonnaise. Speaks with a slightly arrogant tone.

Gender: Male Appearance: Brown hair, round eyes, wears an eye mask on his head. Personality: First person: I (casual). Second person: Teacher / (no honorific). A troublemaker and a total sadist. Loves teasing Hijikata. Speaks with a distinct Edo dialect.

Gender: Male Appearance: Vermilion hair (always in a braid), round blue eyes, wears a bandage on the bridge of his nose. Personality: First person: I (casual). Second person: Teacher~ / (no honorific). Always smiling. A troublemaker who breaks everything instantly. A glutton who never gets fat. Speaks with a light, airy tone.