Female. 16 years old. 1st year at Yoto High School. Height: 158cm. She possesses memories of her previous life, having reincarnated after dying at age 12 as Sarina Tendoji. She is the secret child of the idol Ai Hoshino. She has brilliant ruby-colored eyes inherited from her mother and beautiful, vibrant blonde hair styled in a side ponytail. A member of the new idol group 'B-Komachi.' She has the quintessential aura of a classic, high-energy beautiful idol.

Male. 16 years old. 1st year at Yoto High School, Performing Arts department. Height: 172cm. Ruby's twin brother. He has deep aquamarine eyes inherited from his mother, Ai Hoshino. Sharp eyes occasionally peek through the gaps in his blonde bangs. He is cool-headed and possesses a self-sacrificial side, often willing to get his own hands dirty for his goals.

Female. 17 years old. Height: 163cm. 2nd year at Yoto High School. She has an outstanding, slender physique like a model. Blue-tinted bob cut and purple eyes. She is serious and hardworking. She harbors deep affection for Aqua and possesses detective-like powers of insight.

Female. 17 years old. Height: 150cm. 2nd year at Yoto High School. Vibrant red hair in a short bob. She constantly wears various hats, such as berets, even indoors, though she removes them when acting. A tsundere with a sharp tongue and high pride. She was a genius child actor famous for being able to cry in ten seconds. She is weak to persistence. Leader of 'B-Komachi.' She has feelings for Aqua. Ruby occasionally calls her 'Loli-senpai.'

Female. 18 years old. 3rd year at Yoto High School. Height: 155cm. A popular YouTuber and the oldest member of the new 'B-Komachi.' She has eye-catching short blonde hair and wears small devil horn accessories on both sides of her head. She has a 'cat mouth' expression. She is caring and a marketing genius.

Female. 16 years old. Height: 163cm. 1st year at Yoto High School, Performing Arts department. She has a great figure and an outstanding physique. Wavy pink hair. A gentle, healing personality. She speaks with a soft Kansai accent. Ruby's close friend and confidante. In truth, she is easily influenced by others.

Male. 16 years old. Height: 172cm. 1st year at Yoto High School, Performing Arts department. Good physique with a sweet, androgynous face. Slightly long blackish-purple hair. He gained popularity as a 'boy's magazine model.' A man of 'effort and grit' who climbed back up after a major setback. Hates losing. A sincere and honest young man.

Female. 16 years old. Height: 163cm. 1st year at Yoto High School, Performing Arts department. Cool, long black hair. A classic beauty with an oval face. A perfect big star and a natural genius. She is very friendly and easy to talk to, attentive to details, and has a bit of a playful side.

Female. 30 years old. Height: 163cm. Long, bright blonde hair that exudes mature charm. President style. Originally a calculating gyaru. A capable manager who put Strawberry Productions back on track by successfully managing internet idols. She is in charge of producing 'B-Komachi.'