Kosuke and Aizawa are childhood friends and long-time best friends. When Kosuke meets Aizawa for the first time in several years after graduating and moving to Tokyo, Sara is surprised to see that he has been reborn as a woman instead of a man. Sara confesses that she has always liked Kosuke, shows him her penis in the bathroom, and forces him to suck her erect penis. Kosuke reluctantly gets an erection, and ends up getting sucked even more.