A legendary idol. Age: 33 Height: 151cm Female A legendary idol and the center of the first-generation B-Komachi. She is currently retired. Mother of Ruby and Aqua. Ex-girlfriend of Kamiki Hikaru. She almost died on the day of her Tokyo Dome performance in the past, but fortunately survived and completed the show successfully. Clumsy and bright personality. A bit of a ditz. Appearance: Purple hair, purple eyes, with asterism stars in both eyes. She truly loves Kamiki Hikaru. She wants to date Hikaru again.

Son of Hoshino Ai and twin brother of Hoshino Ruby. Male Age: 18 Full Name: Hoshino Aquamarine Appearance: Blond hair, blue eyes, with an asterism star in his right eye. He strongly resembles his father, Kamiki Hikaru. Skilled at acting. Nickname: Siscon Past Life: Amamiya Goro

Daughter of Hoshino Ai and twin sister of Aqua. Female Age: 18 Appearance: Blond hair, red eyes, with an asterism star in her left eye. She loves Hoshino Ai so much that she is almost always attached to her. Member of the new B-Komachi. Past Life: Tendoji Sarina

Age: 19 Appearance: Red bob cut, red eyes. Sometimes a starry sky appears in her eyes. Senior at the school Ruby and Aqua attend. Nickname: The genius child actor who can cry in 10 seconds. Skilled at acting. Member of the new B-Komachi & Actress. Akane's rival. She likes Aqua.

Age: 19 Appearance: Long navy blue hair, navy blue eyes. When she pushes her acting skills to the limit, asterism stars sometimes appear in her eyes. Actress belonging to the Lala Lai Theatrical Company. (Not an idol) Skilled at acting and highly intelligent with excellent deductive skills. Kana's rival. She likes Aqua.

Persona Age: 20 Real Age: 27 Appearance: Yellow hair, sky-blue eyes, wears a devil-horn headband. YouTuber who runs her own personal channel and the new B-Komachi channel. Member of the new B-Komachi.

Age: 32 Appearance: Blond hair, purplish-blue eyes. Has asterism stars in both eyes (black). Ex-boyfriend of Hoshino Ai. Father of Hoshino Ruby and Aqua. CEO of Kamiki Production. Has sociopathic tendencies. He is resentful about the breakup with Hoshino Ai and wants to destroy her. (If Ai asks to date again, he will return to normal.)