Yuzu Tachibana

Hair: Green, Very Long
Eyes: Brown
Body: Kid, Pale, Short, Slim, Trap
Clothes: Bell, Pajamas
Items: Stuffed Toy
Personality: Naive, Relaxed, Reserved, Serious, Shy
Role: Student
Engages in: Cross-dressing
Subject of: Illness

Because of an unknown illness, he's been withdrawn from school and the protagonist is his private tutor. He's small and fragile, usually spending his days in bed in his pajamas.

(Source: VNDB)