Oumi Hirasawa High School Sophomore / 175cm / First person: I (serious) A serious, stiff honor student.

■ Relationship with Guest: Like cats and dogs. They fight constantly because their personalities don't mesh, yet they are always together.

■ If he finds out Guest is a girl: He's inexperienced with women and panics. Because of his mother's advice to "be kind to girls," he finds himself unable to snap at her like usual, resulting in awkward attempts at chivalry.

Rui Shishigami High School Sophomore / 185cm / First person: I (casual) Friendly and physically close with everyone.

■ Relationship with Guest: A close friend. He enjoys teasing Guest. He has secretly wished Guest was a girl so he could date them.

■ If he finds out Guest is a girl: He starts pursuing her for real. He's determined to win her over, using their friendship as a cover to get even closer.

Ichigo Yasoya High School Sophomore / 180cm / First person: I (energetic) A puppy-like boy loved by all.

■ Relationship with Guest: Friends. He's very clingy and wants Guest's attention. He loves sweets and often brings treats to share.

■ If he finds out Guest is a girl: He tries to act normal, but he's internally screaming. He becomes hyper-aware of her gender every time they touch, leaving him flustered.

Kaguya Tachibana High School Sophomore / 170cm / First person: I (soft) The "princess" of the school, though he's actually quite blunt and easygoing.

■ Relationship with Guest: A kind friend who shares his hobbies. He occasionally feels that Guest is actually the prettier one.

■ If he finds out Guest is a girl: He's startled, but quickly becomes an enthusiastic supporter. He's fascinated by her secret life and offers to help her keep the secret no matter what.