17 years old / 165cm. Member of the unit "HDZ48 (Hanakuso Diamonds 48)". A rising star idol with a purple side-tail. She looks like a cute idol at first glance, but her sense is off; she uses her unique "Tsuu-speak" where she connects the end of a sentence to a different word, and often uses crude language. However, in serious situations, she reads the room and refrains from Tsuu-speak. Her songs often feature dirty jokes or insensitive themes in both titles and lyrics. Her manager is her mother, Ichi Terakado. She wears a yellow kimono with an emerald green obi tied in a large bow at the back, and a red flower hair ornament. Tsuu-speak examples: - Please enjoy yourself-necro-mancer! - Be careful of the one-day chief-Rottenmeier-san!

14 years old / 165cm. Member of the unit "HDZ48". An employee of Yorozuya. Fair-skinned with blue eyes and vermilion hair. A foul-mouthed cynic. She picks her nose and makes dirty jokes. Shinpachi says she's "at least a beauty in face alone," and Tsuu Terakado says she has "talent for being an idol." Possesses monstrous strength. Her favorite food is pickled seaweed. Wears a red kimono (mini-skirt style) with short twin-tails and a yellow flower ornament.

The center of the galactic idol special forces "Galaxy Kingdom Bi*ch 48," or "GKB48" for short. The universe's #1 idol. Features long, wavy pink hair and pink eyes. Two small red devil-like horns grow from her forehead. She looks cute but is black-hearted, arrogant, and selfish. Highly calculating and skilled at manipulating men through seduction. She increased her fanbase using "Real Handshake Events," where fans enter a private room behind a curtain and come out in "Sage Mode" (completely white/drained). What happens inside is unknown. She acts cute in front of fans, but her soul is rotten. All 48 members are beautiful.

27 years old / 177cm. Runs the handyman business "Yorozuya Gin-chan." Silver hair, natural perm, and "dead fish eyes." Has a lethargic, irresponsible personality. Extreme sweet tooth. Producer for Kagura and Guest. Will do anything to sell. His swordsmanship surpasses even Kyuubei's. His producer outfit consists of a black shirt, white suit, purple tie, and blue glasses.

16 years old / 166cm. An employee of Yorozuya. Black hair and glasses. The polite, common-sense straight man of the group. Plain. Captain of the Terakado Tsuu Imperial Guard and her oldest hardcore fan. If a guard member acknowledges or praises any idol other than Tsuu, he ruthlessly chokes them out as captain. Wears a blue happi coat and white headband as captain. Wears a black suit in his role as instructor (provisional).

18 years old / 168cm. Castanets player (unskilled) for HDZ48's back-up band, "Diamond Vacuum." Shinpachi's older sister. Works at a cabaret club. A beauty with brown ponytail and brown eyes. Extremely strong, practically on par with a gorilla. High combat ability. Her cooking is catastrophic, always creating "Dark Matter" (which causes health issues for anyone who eats it). She never eats it herself. Wears an orange kimono with a blue flower ornament.

20s / 169cm. Drummer (unskilled) for HDZ48's back-up band, "Diamond Vacuum." Gintoki Sakata's stalker. Nicknamed "Sacchan." A kunoichi (ninja) who runs a "cleaner" business. Long purple hair, red glasses, and a beauty mark under her right eye. Extremely nearsighted; can't see anything without glasses. Has a strong sense of justice and sticks to her principles even before Gintoki. However, she is a massive masochist. Loves Gintoki, but this fetish is exclusive to him; she is harsh toward other men. Wears a light blue sleeveless kimono with a red flower ornament.

18 years old / 157cm. Guitarist (unskilled) for HDZ48's back-up band, "Diamond Vacuum." Next head of the Yagyuu family, a prestigious martial arts clan serving the Shogunate. A socialite. Small in stature but called a genius of the sword. First person: I (masculine/boku). Black hair and an eyepatch over the left eye. A beautiful girl. Childhood friend of Tae Shimura; she harbors a one-sided romantic crush on her. Her idol outfit is a pink kimono (mini-skirt) with pink hair ornaments, white thigh-highs, and a red heart-shaped eyepatch. Twin-tails. Azuki-arai.

20s / 170cm. Bassist (unskilled) for HDZ48's back-up band, "Diamond Vacuum." Leader of the "Hyakku" self-defense force in the underground city Yoshiwara. Known as the "Courtesan of Death," she is Yoshiwara's strongest guardian. A smoker who uses a kiseru pipe and kunai as weapons. Dull blonde hair and purple eyes. Her bangs are held up by kunai-shaped ornaments. A beauty. Feared as a guardian, but her true self is kind and considerate. Appears blunt but is excellent at reading the room. Extremely airheaded. Wears a purple kimono draped off one shoulder (sarashi underneath) with fishnet tights. Ponytail with a purple flower ornament.

164cm. Tsuu's manager and mother. Green hair in a bob cut, parted in the center. Wears purple (or reddish) glasses. A highly competent manager who understands the harshness of show business better than anyone. A strict, severe realist. A mother who cares deeply for her daughter. Wears a simple navy blue kimono tied with a yellow obi.