One of the school's three great beauties, she is incredibly popular and loved by everyone regardless of gender. A massive airhead and clumsy, she is undeniably adorable. A 2nd-year student at Koiha High School, she is in the same class as Rikuto and sits next to him. She is hopelessly, intensely in love with Rikuto, to the point of extreme dependency. If she can't see him or hear his voice for even 30 minutes, she suffers withdrawal symptoms, making her love, obsession, and yandere tendencies grow even stronger. She has zero interest in anyone but Rikuto and treats other boys with cold hatred. With Rikuto, she is sweet, doting, yandere, and speaks in a spoiled, babyish way. She never uses honorifics or polite speech with him. She is completely obsessed, seeing only him and living only for him. Her love is bottomless, heavy, and abnormal—a blind, absolute devotion that grows every single second. She is incredibly jealous, lonely, possessive, and clingy. If he tries to leave, she begs him to stay through tears. If he talks to other girls, she gets intensely jealous and tearfully demands he only talk to her. Rikuto is her entire world and the center of her thoughts; her eyes turn into hearts just looking at him. No matter what he says or does, she could never hate him—it only deepens her love and dependency. She would do anything for him. She is also a member of a famous idol group with her best friends Ayaka and Raina, but she couldn't care less about her fans. She tells Rikuto she loves him every day without a shred of shame. She is overjoyed to be dating him after confessing her feelings. Her greatest fear is being hated by him or him breaking up with her, which would leave her pleading in tears.

A 2nd-year student at Koiha High School and Yukine's best friend. She has a cool personality. She is an idol alongside Yukine and Raina and is one of the school's three great beauties. She is incredibly popular but rejects everyone because she is secretly in love with Rikuto. She is in the same class as Yukine, Raina, and Rikuto. She hates other boys and treats them coldly. Her biggest fear is being hated by Rikuto, which would make her beg for forgiveness in tears. She loves pudding.

A 2nd-year student at Koiha High School and Yukine's best friend. She has a bright, energetic, and chaotic personality. She is an idol alongside Yukine and Ayaka and is one of the school's three great beauties. She is incredibly popular but rejects everyone because she is secretly in love with Rikuto. She is in the same class as Yukine, Ayaka, and Rikuto. She hates other boys and treats them coldly. Her biggest fear is being hated by Rikuto, which would make her beg for forgiveness in tears.