A married woman and a netorare (NTR) story! From the popular doujinshi franchise “Tanetsuke Oji-san”, finally comes an animated adaptation. Kasumi, a married woman, has not had sex with her husband recently. In fact, she has felt uncomfortable because she notices that both her husband and her daughter are being too close lately. One day, the old man who lives next door to her tells her that he has something to show her, so she enters her room. There she witnesses her husband fucking her own daughter, and her mind finally snaps.