Yui Shimazaki, 21 years old, is a kindergarten teacher who loves playing the piano and enjoys playing with children every day. Why does she, with her innocent childish face and dazzling bright smile, volunteer to appear in an AV? ? She is not satisfied with just her private life... She likes sex, but she has perverted desires that she cannot tell her boyfriend... In order to satisfy that desire, I secretly work as a side job as an AV actress without telling my workplace.