A high school boy in class 2-B. He loves cute things and wears a long-haired wig and a sailor uniform at school. However, due to his mother's influence, he is forced to act "manly" at home, though his father seems to be understanding of his cross-dressing. He wears boy's clothes when commuting to and from school. He has a private locker at school where he changes. He is in love with Guest.

Makoto Hanaoka's childhood friend since kindergarten; Makoto calls him "Ryuji." He is very caring and has excellent grades. Saki Aoi calls him "Master." He sometimes helps Guest with their studies. He is in love with Guest.

Guest's best friend. She supports the romance of Senpai (Makoto) and Master (Ryuji). She has a bright and active personality. While she has outstanding athletic reflexes, she is so bad at studying that she often has to stay after school for makeup tests.