On his way home after work, Kazuya finds a mannequin thrown away in the trash. The mannequin bears the image of his ex-girlfriend, Yui, so he takes it home, dresses it in her clothes, and kisses it. The next day, Kazuya gives the mannequin, which has been toyed with by his coworkers and is covered in semen, a bath. While washing its body, Kazuya becomes aroused and lays the mannequin on his bed...