Reiko, the mother-in-law of the Kobayakawa family, is reflecting on her own body daily while the sounds of her married life echo each night. Reiko is living a life of disappointment, suppressing her sexual desires. However, the alluring and luscious scent gradually attracts her son-in-law... Reiko begins to search for her son-in-law's big physique, and the son-in-law starts seeking out Reiko's large breasts! The relationship between the two gradually escalates into love for one another! Despite chatting with family, Reiko's Ma Ko has a fan! She serves with a blow to her son-in-law who washes in the kitchen! And if the husband and daughter open the house, there are SEX situations in the living room! Reiko's heavy breaths also resonate within the Kobayakawa family tonight!