Wearing a warm winter knitted sweater, she engages in penetration with her sweaty mother-in-law. (Shin-Kawa Ai-Nichi JUL-416)

This year, the Japanese archipelago experienced a record-breakingly warm winter. Takayuki went back to her parents' house for winter break. Normally it's bitterly cold, but this year was completely different. Her father and stepmother, Ai-shichi, lived in the house, but when she arrived, Ai-shichi had already put away her autumn clothes and was cleaning the room, sweat dripping from her newly taken-out winter knit sweater. Her chest bulged from her tight-fitting sweater, and sweat beaded on her armpits and neck. Seeing her mother-in-law like that, Takayuki could no longer contain her emotions…