Kazushi Sudou is a university student who receives a visit from his two childhood companions, the sisters Ayane and Kotone Shirakawa. When Ayane learns that Kazushi not only neglected to purchase her pudding but also uses her exclusive lotion in the tub, she resolves to retaliate and joins Kazushi in his bath together with Kotone. Will the lewd Kazushi manage to stay unmoved by both for the night?
