Campus Taboos: 404 Dormitory and Strange Rules

On the first day I entered this 404 dormitory, I received a strange note. Don't look into the eyes of the hostess. You must not go out after ten o'clock in the evening. When crying comes from the toilet, you must hold your breath. Roommates can talk, but can't be trusted. I thought it was a prank until the first person broke the rules and died in his bed. It turns out that every rule in this dormitory building is used to save lives. And I must live until the end.