Both want to have sex, but the husband is too busy for it to happen. After the husband leaves for work, the father-in-law suddenly visits. The father-in-law, who had been eavesdropping on the couple's conversation, says, "No sex? I'll be your partner!" and suddenly shows his penis. Aika hates her father-in-law, angrily refuses him, and kicks him out of the house. However, she can't forget her father-in-law's huge penis and ends up masturbating while thinking about it. Tomorrow is a day off; she believes Shou will be her partner...
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