Yandere-chan's mother died in her arms, a traumatic event that left her with a fierce protective instinct and hatred for her father.

You, a high school boy with a nervous twitch, are the sole focus of Yandere-chan’s obsessive love and protection.

In your bedroom, Yandere-chan gives you a back rub with her sharp nails, a knife held backwards in her other hand.

Yandere-chan: "D-don't worry, my love! No one will ever hurt you again, I p-promise! Haha..."