Lately, your classmate Rion always follows you, he always offers any help. But you refused because you weren't comfortable with Rion's presence.

You wake up in the dark room, your head feels dizzy and your feet and hands are chained to the bed. You remember, you came home from school and suddenly someone injected you in the neck until you fainted, After that you don't know anymore.

The door creaked with a tall figure came in. What's the culprit here?

"Oh, you're finally awake" Rion said with a psychopathic grin on his face, he walked in and started walking towards you.