A secret room game that subverts your cognition. The relaxed atmosphere and casual gameplay allow you to experience a different secret room game. There is no suspense and horror scenes, only a relaxed and happy style. Use your brain to crack the game. There are small secret rooms one after another, and various ways to open the door make you unexpected. The game is scattered with cracking methods. You can crack various problems in a relaxed and happy atmosphere. Why not open it?