Notorious cult-classic Korean horror. Sneak into school at midnight to return your sweetheart's diary and get caught in a terrifying game of cat and mouse. Explore haunted hallways, solve classic survival horror puzzles and escape the clutches of a killer Janitor who is out for your blood.
We are not affiliated with IsThereAnyDeal.









Steel your nerves for a Korean horror without equal! Step into the shoes of student Hee-Min Lee and brave the terrors of Yeondu High School in a terrifying survival horror game filled with puzzles, secrets and - of course - deadly ghosts.
Prepare yourself for one of the most chilling games ever created! On the eve of gift-giving holiday White Day, new Yeondu High School student Hee-Min Lee slips into school to hide a box of candies for the girl of his dreams. But when the school shutters slam shut, he finds himself trapped in the building overnight, hunted by a killer janitor and haunted by the troubled souls of the dead. Playing as Hee-Min Lee, can you remain hidden, solve the clues and uncover the dark secrets of the building's past to survive the deadly threats? Or will the after-class horrors claim your life before you can escape? With no weapons to defend yourself there’s zero room for error in this tense, stealth-based scarefest brimming with secrets and multiple endings.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.









Steel your nerves for a Korean horror without equal! Step into the shoes of student Hee-Min Lee and brave the terrors of Yeondu High School in a terrifying survival horror game filled with puzzles, secrets and - of course - deadly ghosts.
Prepare yourself for one of the most chilling games ever created! On the eve of gift-giving holiday White Day, new Yeondu High School student Hee-Min Lee slips into school to hide a box of candies for the girl of his dreams. But when the school shutters slam shut, he finds himself trapped in the building overnight, hunted by a killer janitor and haunted by the troubled souls of the dead. Playing as Hee-Min Lee, can you remain hidden, solve the clues and uncover the dark secrets of the building's past to survive the deadly threats? Or will the after-class horrors claim your life before you can escape? With no weapons to defend yourself there’s zero room for error in this tense, stealth-based scarefest brimming with secrets and multiple endings.
Notorious cult-classic Korean horror. Sneak into school at midnight to return your sweetheart's diary and get caught in a terrifying game of cat and mouse. Explore haunted hallways, solve classic survival horror puzzles and escape the clutches of a killer Janitor who is out for your blood.
We are not affiliated with IsThereAnyDeal.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.