Doing It With Mom, Mother Sensual, Son Lustful.

Yosuke Nakajima, once brimming with talent, has turned 40 this year. After experiencing a stroke of bad luck and returning to his family home, he finds his biological mother divorced and his father remarried to a strange woman, which only fuels his pent-up frustration. His father pays him no mind, spending every night enjoying himself with his new wife, Mitsuko, as if to spite him. For Yosuke, it was only natural that he began to see Mitsuko as a woman rather than a mother...