LULU-005 A secret affair with the stepmother while dad sleeps next door

Kanako has been married for half a year. Ko-chan is the child of her husband and ex-wife. Because of her old age and drinking, every time Kanako wants to have sex, her husband can't meet her. On the contrary, her husband's son always wanted to see her naked body, so she came up with the idea of wanting to impregnate his child...