After divorcing her husband, Yu had been living alone. Her daughter invited her to live together, and they started sharing a home. One day, when Yu tried to wake up her son-in-law who was sleeping in, he wouldn't budge. Sleepily, he mistook her for his wife and hugged her tightly, pinning her down. When he realized his mistake, he apologized profusely. Yu couldn't help but feel a flutter in her chest at the unexpected strength of his embrace. Later that day, Yu's daughter and son-in-law were intimate. However, her daughter was exhausted and the encounter ended quickly, leaving her son-in-law unsatisfied. He confided in Yu about it in the kitchen. Yu, sensing his frustration, placed her hand on his groin and said, "You should just cum."