The androgynous, cool beauty <Kino> experiences anal sex during an overnight stay with his master. The story begins with the embarrassing scene of Kino waking up to a natural erection, being teased until he can't hold back and ends up ejaculating. Prompted by this incident, he is made to cosplay, leading to an exquisite session of having his anus and penis played with all day long. Kino's cool demeanor combined with his flexible response to the situation creates an even greater allure.