Joou-sama no Roommate

Chiaki Asami was transferred to Shuurin High School into the Suzuka Dorm. Nachi Kirishima, who has a beautiful face like a model, is assigned to be his roommate. When he's just getting accustomed to dormitory life, a welcome party for Chiaki, suggested by Nachi, is carried out. One night, Chiaki witnesses lewd play between Nachi, Shinobu, and Haru!