a couple who both want to have sex, but can't because the husband is busy. after the husband goes to work, the father-in-law suddenly visits. the father-in-law, who had been eavesdropping on the couple's conversation, suddenly shows off his dick, saying, "are you sexless? i'll be your partner!" aika, who hates her father-in-law, angrily refuses and kicks him out of the house. however, she can't forget his big dick and masturbates while remembering it. tomorrow is a holiday, sho will definitely be my partner! believing that...