"In my wet dreams, only you always appear." Tae-hwan ignored the surprising confession of Yeong-hae, whom he considered like his own niece since he was young, and thought it was just a joke. One day, when Yeong-hae, annoyed by Taehwan's reaction, continued to be rude "I want you to choose me something bigger and thicker." After visiting a urologist, Tae-hwan discovers a new taste, and their relationship changes...?!