The beautiful wife Nanami, who lives with her husband with obsessive-compulsive disorder, is raped by her husband's boss Sugimori while her husband is on a business trip. Nanami is forcibly penetrated with Sugimori's penis, and experiences being repeatedly filled with his dirty semen, which leaves her with a sense of being 'defiled'. Sugimori takes advantage of Nanami's loss of chastity and repeatedly uses her as a plaything. However, Nanami, who is stressed by her husband's obsessive-compulsive disorder, is gradually consumed by the sensation of being filled with dirty liquid.