Yandere Simulator is a psychological horror game that puts players in the shoes of a yandere, a character archetype in Japanese media that refers to a person who is obsessively in love with someone, often to the point of violence. The game's story revolves around the player's character, who is a high school student obsessed with a popular girl named Ayumi. The player's goal is to eliminate Ayumi's rivals and confess their love to her, all while navigating the challenges of high school life.