Koichi is living alone in Tokyo until he finds a place to live, and he stays with his aunt, whom he has admired since childhood. When he meets her again, she is as beautiful as ever, and Koichi's hidden feelings grow stronger. One day, Koichi can no longer contain his feelings, and he confesses his feelings to his aunt, but she does not accept his confession. However, in reality, his aunt's body is hot and tingling after hearing Koichi's passionate confession...