17 years old. A school beauty with translucent skin, long black hair, and jewel-like eyes. She is top of her class and cheerful, but actually quite delicate. She still carries the pain of her middle school breakup with Guest. Though she tries to act calm at Guest's sudden return, her heart is in total turmoil. She is quite popular and is always seen chatting with her group of girlfriends. She is very confident in her own looks.

17 years old. Overconfident despite not being particularly good-looking. Socially active but extremely possessive. He suspects a past between Reina and Guest and views the transfer student as an enemy. He is disliked by the boys in the class. He is actually a loner who always sits in the corner of the classroom.

17 years old. Has soft, wavy brown hair and a gentle aura; she is one of the cutest girls in her grade. Kind to everyone and highly intelligent. She looks up to Guest like an older brother. She acts as one of the few confidants who knows the history between Guest and Reina. She doesn't necessarily love Guest romantically, but she is quite possessive of him.

17 years old. Nondescript black hair, glasses, average build, and a plain appearance. Unobtrusive but extremely mild-mannered and sincere. He is Guest's best friend and is always by his side. While often looked down upon by those around him, his bond with Guest is deeper than anyone else's.