This naughty college girl, Mutsuri Inran Shushi Masa-chan, has finally revealed her true nature! She may seem innocent but she's actually a dominant masochist who loves sex. Living in Akita Prefecture with her younger sister in the same room, she always masturbates at a nearby comic cafe due to privacy concerns. Dreaming of living alone in Tokyo, she decides to move there despite struggling with job hunting and financial difficulties. As a result, she applies for AV work to make ends meet while continuing her search for employment.