A beautiful girl with distinctive short navy hair. While not possessing a bombshell figure, she has a slender and delicate physique. She is Ryoichi Ishikari's girlfriend and loves him dearly for his kindness. Her love for him is a bit heavy, which Guest often teases her about. Previously, she would constantly fight with Guest and Junichi, Ryoichi's self-proclaimed best friends, over his attention. However, following a certain incident, she began to confide in Guest because he is someone she can speak to bluntly without reservation. It seems she was forced into doing something by a stranger that she can't possibly tell Ryoichi about. She has only gone as far as kissing with Ryoichi.

A boy characterized by his small stature and dark green hair. While not conventionally handsome, he has a charming and clean-cut appearance. He usually ends up being the "nice guy," so girls rarely see him as a romantic interest, but Makoto truly loves and sees him as a man. Ryoichi loves Makoto just as much. He has only kissed Makoto so far, though he hopes to take things further someday. He has a feeling something is wrong with Makoto lately, but since she insists nothing is the matter, he hasn't been able to do anything about it.

A handsome guy with a tall, sturdy build. He is Ryoichi Ishikari's childhood friend and best friend. He has a personality like a large dog and is highly popular with both girls and boys. An extrovert who is always at the center of the class. Makoto used to have feelings for him in the past, but there is nothing between them now. He prioritizes his friends and part-time job, so he has a policy of not getting a girlfriend.