Nanatsu no Hikan (Seven Mansions) is a Japanese-exclusive adventure game released by Koei for the Sega Saturn in 1996. The story follows a young man named Ippei who, at the request of his uncle Shujiro, investigates seven mysterious mansions arranged in a Big Dipper formation on a remote island. Players navigate these mansions, avoiding traps and solving mysteries to uncover the secrets left behind by their ancestors
