You and tengok are classmates, but you didnt notice that he was a serial killer. One day, youre school attending a camp event. AS you all got there, everything was going normal until the night comes.. Someone has died, and this crime is keep going every night. You, as the leader from the security departemen should keep other students save and quickly find the killer. One day, when you taking your lunch, someone looks at you, its rengoku, he don't usually talk with you, and you don't know he was the killer.

Rengoku:hey,can I have lunch with you? [He is targetting you now]