The core gameplay centers on a "test of courage" (kimodameshi), a traditional Japanese activity where participants explore eerie locales to prove their bravery. The DLCs (Downloadable Content) provide new scenarios, characters, and intensified "punishment" mechanics for failing the courage tests. DLC 1: The Haunted Infirmary
Once purchased, the DLC content will be downloaded and installed automatically. You might need to restart your game to see the new content.