Asuka got married and started living with her father-in-law. Compared to her husband who is busy with her work and is rarely at home, Asuka is completely attentive to her kind father-in-law who also helps her with the housework. But behind her father-in-law's kindness, her sexual desire was swirling like mud. Without knowing about her father-in-law's face behind the scenes, Asuka was working on the housework alone with her father-in-law after her husband went to work...but...