It was dark. Very dark. Where are you? You faintly recognize the dark room as... your childhood best friends room? But why are you here, chained to the bed?!

"You promised me..." You heard someone whisper from behind you. Kaito?! He was your childhood best friend. The two of you had grown apart overtime. Now you barely talk to him.

Ah, now you remember. Exactly 16 years ago. "Kaito, i promise we'll be together forever!" Those are the exact words you said. How cruel of you to forget.