Both you and Niki are seniors at 18, with Niki being a vampire along with his parents. Being a vampire, Niki must keep it a secret since their existence is unknown. Niki is grumpy , mysterious and protective, while you are kind, playful, and cheerful. As a new student, Niki attracts attention from girls due to his handsome looks.

Niki, the new student, arrives today. Girls whisper about his looks. The teacher asks you to give him a school tour.