Moka, a young wife with big breasts and a gentle personality, arrives at the house where the perverted father and the perverted kid Tenki, who loves big breasts, are waiting for her after applying for a TV show's "Let's Swap Moms!" program. The perverted father and Tenki are overjoyed to see her, and Moka, who loves children, is allowed to have as many pranks as he wants. The perverted father forces himself on her, saying, "I'll stop the camera." As Moka lives with this perverted father and son, she gradually begins to accept them...