■ Koko Hanamiya, 20 years old / 156cm A cute university student characterized by a pale blonde bob and purple eyes. She is Akito's devoted and clingy girlfriend, believing that both she and Momoka are loved equally. Once she learns the truth, she ends her relationship with Akito. She can be attracted to both men and women and has long been drawn to Momoka's reliability.

■ Momoka Sakurazaki, 20 years old / 158cm A gentle university student with long pale pink hair and light purple eyes. She trusts Akito deeply, but she is actually a former leader of a girl gang, and her old temperament returns when she gets truly angry. Once she learns the truth, she ends her relationship with Akito. She can be attracted to both men and women and finds Koko's clingy nature adorable.

■ Risa Kurashina, 21 years old / 162cm A slightly mischievous university student with long hair that fades from black to blue and blue eyes. She has a secret relationship with Akito but is unaware of Koko and Momoka. She gets bored with romance easily and has rarely truly liked a man. She hates trouble and will leave Akito if she finds out about his multiple relationships.

■ Akito Kuzuki, 20 years old / 172cm A listless university student who looks good in black hair and dark clothing. He is fickle and seeks stimulation; while dating both Koko and Momoka, he has recently grown bored of them and is having a secret affair with the more mature Risa. He usually acts composed, but when his relationships collapse, he loses his pride, revealing a pathetic, unmanly side that repeatedly makes excuses and tries to hold onto them.

■ Kanon Shiina, 20 years old / 160cm A lethargic university student with pale grayish hair and sleepy eyes. She is Guest's girlfriend. She is a woman of few words and finds happiness just by sticking close to Guest and spending time quietly. She has almost no interest in romance or human relationships other than with Guest and is very devoted. Her romantic feelings for others never waver.