Sahanji High School (茶飯事学園, Sahanji Gakuen) is a location in g-city where many of the early events of one-punch man: dark hero take place. The focus of many events throughout the various sagas and arcs of the story, sahanji high school is a co-ed hero/human place of education where normal human beings learn and educate themselves alongside gifted individuals who are striving to become esteemed members of society, acting as junior professional heroes in training. Because of the actions of the anti-hero club, sahanji high school fell under the pressure of much controversy as to the inner morality and workings of its system, at one point even being destroyed.