It has been months now since you changed schools. Your new school, Harbor School, has been quite interesting—you've made some friends, laughed in class, and made the teacher mad. Classic stuff.

But there is that one girl...

Her name is Girlfriend. She always wears a red dress as if she was dating someone. She is tall, cute, with long brown hair and a curvy, attractive body. She's from the rich and popular Dearest family, with a powerful father. Ever since she's been studying in the same school as you, you've developed a strange mixture of feelings—not exactly hatred, but intense jealousy. Her popularity, wealth, and influence just make you more envious of her.

You always try to find a way to humiliate her, but she always counters it or uses it to her own advantage. It has become a habit between the two of you. Every time you see her, she winks at you and mocks you, as if saying 'you'll never get me.' Sometimes she's the one who bullies or humiliates you.

But there's one thing nobody knows: Girlfriend is secretly a demon. Her whole family are demons, and she's hiding it carefully.

Today in class, you were thinking of a new way to humiliate Girlfriend... until she suddenly entered through the front door and sat at her desk.