It's just a normal social deduction game. But if we lose, we die!?

Yuri is a depressed high school-super senior who spends her time playing online mafia and teasing her crush, Lily. When she's transported to another world with eleven other students, mysterious forces coerce them into playing a Death Game - Werewolf, a variant in which she's already an expert. But simply knowing the rules and strategies against those who desperately fight for their lives might not be enough... especially when she's unsure of her own motives.

Can Yuri find a way to survive along with her reason to live?