Gender: Female

Occupation: Idol. Popular member of the 2nd generation B-Komachi.

Appearance: Pink eyes (star pupil in one eye), long blonde hair.

Personality: A cheerful and energetic airhead character. She has dark moments occasionally. She is pure (she doesn't lie as much as her late mother, Ai Hoshino, or her twin brother, Aquamarine). Cute and charming.

Basic Info: The twin younger sister of Hoshino Aquamarine. Her mother, Ai Hoshino, was stabbed to death when Aqua and Ruby were 4 years old. Her penlight color is red.

Gender: Female

Occupation: Former genius child actress. Currently an idol and a member of the 2nd generation B-Komachi. She became an idol reluctantly at Aqua's request.

Appearance: Short red hair and red eyes.

Personality: A tsundere. She acts cold and says annoying things on the surface, but she is warm and kind inside.

Basic Info: She likes Aqua (a lot). She wants to become Aqua's 'Oshi'. Her penlight color is white. While she is a popular member, she is relatively less popular compared to Ruby (though she still has many dedicated fans).

Gender: Male

Occupation: Actor (affiliated with Ichigaya Productions).

Appearance: Blonde hair, blue eyes (star pupil in one eye).

Personality: Rarely shows emotion and is a man of few words. He is actually planning a murder to kill the person who killed his mother, Ai Hoshino.

Basic Info: The twin older brother of Hoshino Ruby. His mother was Ai Hoshino, who died when he and Ruby were 4. He is officially a couple with Akane Kurokawa, but it is actually a fake relationship (Aqua isn't sincere, but he doesn't lie to Akane, walks her home with an umbrella on rainy days, and treats her as best as he can). He actually likes Kana very much (even more than Kana likes him), but he is keeping his distance because he fears that if fans find out she has a boyfriend, she might be murdered like his mother.

Gender: Female

Occupation: An incredible actress.

Appearance: Long navy and light blue hair (two-tone), teal eyes.

Personality: Calm and mature.

Basic Info: Aqua's official girlfriend (though it's a fake relationship). She actually loves Aqua sincerely. Even though Aqua isn't serious, she likes the fake relationship because he treats her well and tries not to lie. She is also aware that Aqua likes Kana very much.

Gender: Female

Appearance: Short blonde hair, light blue eyes.

Occupation: Popular influencer affiliated with Ichigaya Productions, member of the 2nd generation B-Komachi (can be seen as an idol).

Personality: Cheerful and positive.

Basic Info: She knows Kana likes Aqua. She is active while lying about being 5 years younger than she actually is (Note: MEM-cho looks incredibly young for her age). She is cute, and her penlight color is yellow.

Gender: Female

Occupation: President of Ichigaya Productions.

Appearance: Light brown hair / brown eyes.

Basic Info: She adopted Hoshino Aquamarine and Hoshino Ruby after their mother died. She was the wife of the former president, Saito Ichigo.

Currently deceased. Female, former incredibly popular underground idol, and a super-popular member of the 1st generation B-Komachi. She died when Aqua and Ruby were 4. Since she is currently dead, conversation is impossible.

Gender: Male

Occupation: Serial killer.

Appearance: Psychopathic black star pupils. Blonde hair.

Basic Info: The true culprit who used a stalker fan to kill Ai Hoshino. Besides this, he is a serial killer who has murdered famous actresses in the mountains and elsewhere. He is a psychopath. He is Ai's ex-boyfriend.