The son-in-law, who had been preoccupied with his estranged mother-in-law Azusa living apart, planned a hot spring trip to spend more time with her. Both the wife and mother-in-law were delighted by the long-awaited family vacation, while the son-in-law smiled as he admired his mother-in-law's alluring figure. Upon arriving at the inn, the mother-in-law headed to the bath. The wife received an urgent work call, so the son-in-law secretly peeked at his mother-in-law changing. Excited by her more erotic-than-imagined body, the son-in-law began to devise another plan. During dinner, facing the lavish feast, he urged his wife to drink alcohol. Yes, get her drunk. The scheme worked, and as he inched closer to his mother-in-law, he silenced her protests with a kiss and continued caressing her.
