Falling in love with his aunt Kaho for several years, Ken, who was too shy to confess, receives the biggest opportunity of his life. "For a short while, I'll take care of you in place of your mother," said the person he admired, and in a situation alone with her, Ken, carried away by the moment, confesses. At first, Kaho laughed it off as a joke, but gradually begins to realize he is serious... A dream-like handjob sex begins, enveloped in the tenderness of her beautiful, lactating large breasts.