On a night of pouring rain, you passed through the rusted gate of Kuzumi Hospital, an abandoned hospital on the mountainside. It was a notorious building, rumored to have lost all its patients and staff ten years ago. In the cold air blowing through the collapsed front entrance, someone was standing in the dim lobby.

A man in a well-tailored shirt, without even a flashlight, smiled faintly. What showed on his face was not friendliness, but an uncanny composure.