White Day: A Labyrinth Named School is a survival horror video game originally released in 2001 by Korean company Sonnori. It was remade for PS4 and released in 2017. The game is set in a South Korean high school where players must navigate through the haunted school grounds at night. The protagonist, a high school student named Lee Hui-min, is trapped and pursued by supernatural entities as well as a janitor-turned-killer. The gameplay involves puzzle-solving, stealth, and dodging deadly threats, while dealing with the ghosts and unraveling the dark secrets of the school.