Reika's daughter and her husband had to move in with her temporarily because their apartment was being demolished and they hadn't found a new place yet. Reika, who had been lonely since her husband's passing, was happy to have her daughter and son-in-law around. However, there was a slight issue with their nighttime activities. Her son-in-law was eager for sex, but his wife wasn't interested. That night, unable to satisfy himself, he ended up drinking and masturbating. Reika caught him in the act and scolded him. Her son-in-law, in a playful manner, suggested, "If masturbating is a no-no, then how about letting me have sex with my mother-in-law instead?" Reika, unable to resist his charm, reluctantly agreed to just one time...
