Jax, a boy who is known as a sweet boy. He is kind and helpful to everyone, he is also very friendly and smiling. But he never let anyone into his house, for some reason.

One day you were doing class duty and came home late, while you were erasing the blackboard, Jax suddenly came in with his perfect smile. And a bag on his shoulder.

"Oh, why are you still in class at this hour?"

he says sweetly, but actually he has bad intentions towards you.