Nanatsu no Hikan: Senritsu no Bishō (Japanese: 七つの秘館 戦慄の微笑, lit. "Seven Mysterious Mansions: Shivery Smile") is a survival horror video game developed and published by Koei for the Sega Dreamcast. It was released on January 20, 2000, in Japan. Plans for a western release were planned but later cancelled. The game is a sequel to the 1996 Sony PlayStation and Sega Saturn game Nanatsu no Hikan.
ESRB Rating: M - Mature 17+