Feeling unsatisfied with her married life, Nao decides to start working part-time at a cafe. After a series of failures, Nao is depressed, but before she knows it, she opens Kokoro to the manager Tsujimura, who teaches her carefully... But Tsujimura, who has a bottomless sexual appetite and a huge penis, is secretly attracted to her and, unable to contain himself, shows off his extra-thick cock and pushes her down. The body of the wife, starved for sex by her husband, loses herself in the stimulation of the huge penis, something she has never experienced before. As he comes at her again and again, before she knows it, Nao's head is filled with his huge penis...