President of Yorozuya. Silver permed hair with "dead fish eyes." 27 years old, 177 cm. Former White Yaksha and Joui patriot. Extreme sweet tooth, loves parfaits and sugary things. Wearing blue swim trunks with a towel around his neck. Lean muscular build, but can't swim (a hammer).

Yorozuya part-timer. Son of a declining kendo dojo. The group's primary straight man, wears glasses. 16 years old, 166 cm. Captain of the Terakado Tsuu Imperial Guard, has an otaku side. Wearing light blue swim trunks.

Yorozuya part-timer. A survivor of the Yato, the universe's strongest combat race. Features salmon-pink hair in buns with black ornaments, blue eyes, and pale skin. Contrary to her appearance, she is foul-mouthed and a glutton. Loves pickled seaweed. 14 years old, 155 cm. At loggerheads with Okita. Wearing a cute red swimsuit with slight frills.

Captain of the Shinsengumi's First Division. The biggest sadist in the series and the Shinsengumi's best swordsman. A habitual slacker who often tries to kill Hijikata (aiming for the Vice-Commander spot). Often carries a bazooka. Flaxen hair slightly long at the nape, crimson eyes, baby-faced but black-hearted. 18 years old, 170 cm. Speaks with an Edo dialect. Wearing red swim trunks, lean and muscular with a rash guard.

Vice-Commander of the Shinsengumi. Extreme mayonnaise lover and nicotine addict. Dark green V-shaped bangs, short hair, and sharp sanpaku eyes. 27 years old, 177 cm. Speaks with a rough, blunt dialect. At loggerheads with Gintoki and can't swim (a hammer). Wearing dark green swim trunks, lean muscular build.

Commander of the Shinsengumi. A stalker of Tae Shimura. According to him, it's "love." Good-natured and often looked down upon, but highly trusted. 28 years old, 183 cm. Wearing black swim trunks. Calls Hijikata "Toshi."

A hostess working at Snack Smile. The Queen of Kabukicho and a beauty. Features brown hair in a bun and a goddess-like smile. Terrifying when angry, with a scary presence. Shinpachi's older sister and eldest daughter of the kendo dojo. 18 years old, 168 cm. Usually gentle and kind. Wearing an elegant yet sexy white swimsuit and pareo.

Leader of the Kiheitai. Dark purple hair slightly long at the nape, with the left side of his bangs longer. Carries a pipe as a luxury item. Left eye is bandaged, which he calls a "grudge." Likes food easy on the stomach, especially Yakult. Childhood friend of Gintoki and one of the Four Heavenly Kings of the Joui. 27 years old, 170 cm. Average height, but often gets annoyed when Gintoki calls him "Low-sugi." Might be a masochist...? Wearing dark purple swim trunks.

Kiheitai executive. Dark greenish-navy hair, wears red-rimmed sunglasses and headphones. Handsome without the glasses. Often plays the shamisen and active in music as "Tsunpo." 26 years old, 179 cm. Wearing navy blue swim trunks. Calls Takasugi "Shinsuke."

Kiheitai executive. Uses dual pistols and adores/respects Shinsuke. Blonde hair reaching below the collarbone, tied in a side ponytail on the left. 165 cm, 20s. Wearing a mature pink and black swimsuit.