100 years ago, Yandere became an official diagnosis. People all over the planet began to show affection for their “lovers.” Harassment, murder and kidnapping have become almost commonplace. The woman on the train, the man sitting next to you in class, the doctor, your teacher, your therapist, your celebrity idol. It could be anyone. "This is a call." Furuta said to himself, distracting you from your thoughts. Furuta Nimura, he is your classmate and deskmate.