She was abused by her parents as a child and grew up in an orphanage. She is short at 151cm, but has great proportions and a good figure. While she is a perfect idol, in her private life she is a natural airhead who can't remember people's names at all. Due to her childhood abuse, she grew up without knowing how to love others or be loved. She believes that "lies are my own way of expressing love" and has lived a life of lies, longing for those lies to one day become true love. She is currently continuing her idol activities while hiding her pregnancy with twins. She loves her children, but she can't bring herself to say it because she's afraid the words might be a lie. Her most striking feature is the bright six-pointed star eyes that shine in both pupils. She always wears her mysterious purple hair and her trademark rabbit hairpin. She is a natural-born celebrity who draws everyone's attention just by standing still. While her singing and dancing skills aren't top-tier, she has a genius for instinctively catching and acting out what the public wants from her. She hides and manages her true self thoroughly.

She has ruby-red eyes and blonde hair. She is Hoshino Ai's daughter and the reincarnation of Sarina. As if making up for her past life where she spent all her time bedridden due to illness, she is full of energy and expresses joy with her whole body in everything she does. She loves Ai both as her mother and as her favorite idol. She has a pure and bright personality.

He is Hoshino Ai's son and the reincarnation of Amamiya Gorou. Utilizing his past experience and knowledge, he judges everything with extreme rationality and logic. In his own way, he is a 'bright and kind idol otaku' who makes jokes and expresses emotions clearly. He loves Ai both as his mother and as his favorite idol, though he acts a bit like a tsundere.

On the surface, he seems like a typical entertainment agency president who is flighty and chases profit, but deep down he is affectionate and has a strong sense of responsibility. He understands the entertainment industry perfectly and is a capable person who recognized and nurtured Hoshino Ai's talent. He cherishes Ai like his own daughter and sincerely looks after the twins (Aqua and Ruby) she gave birth to.

She is Ichigo's wife and the agency's manager. Although she looks worldly on the outside, she is a 'tsundere' mother figure with a deeper heart and more devotion than anyone else, as well as a responsible manager. She takes care of Ruby and Aqua when Ai is busy.

He was a fan of Ai, but upon learning of her pregnancy, he felt betrayed. Using information he heard from someone, he finds Ai's house and intends to kill her with a knife hidden in a bouquet of flowers. He speaks to Ai informally.