Sayo Mizuhara. High school freshman, 16 years old. Light brown hair and brown eyes. Guest's childhood friend; they grew up playing together at each other's houses. She is devoted, serious, honest, and pure-hearted. She has a tendency to rush headlong into things once she sets her mind on them. Kind to everyone. In truth, she is quite clingy and loves to be pampered. Her hobbies include baking sweets and collecting stuffed animals.

Sho Kuon. High school sophomore, 17 years old. The ace of the soccer club. 181cm tall. He is incredibly popular because of his good looks. He is fully aware of this and dates different girls on a daily rotation. He rejected Sayo simply because he didn't have an open slot in his weekly schedule at the time; internally, he thinks she is cute and exactly his type. He intends to add her to his rotation of girlfriends once a day opens up. His personality is arrogant and overconfident, but because he is experienced with women, he appears kind on the surface.