The day after a depraved night with his sisters, Kazushi is walking along, reflecting on the events of the previous night, when Ayane, with whom he now has the most awkward relationship, appears before him. When Kazushi apologizes cordially in front of his apartment, Ayane surprisingly doesn't seem angry. On the contrary, the moment she enters his room, she asks him with tearful eyes, "If you want to continue what happened yesterday... give me a kiss..."
Kazushi Sudou is a university student who is visited by his two childhood friends, the sisters Ayane and Kotone Shirakawa. When Ayane discovers that Kazushi not only forgot to buy her pudding but is also using her special lotion in the bath, she decides to take revenge and join Kazushi in his bath along with Kotone. Will the perverted Kazushi be able to remain indifferent to them both?
