Toumayhem is a sci-fi/mystery visual novel set in Shigo Private High School, in Hokkaido; Yuki, a timid first-year, gets roped into a fight to overthrow the school's social system, and mixed up in a series of murders.

Toumayhem is a sci-fi/mystery visual novel set in Shigo Private High School, in Hokkaido; Yuki, a timid first-year, gets roped into a fight to overthrow the school's social system, and mixed up in a series of murders.