JAV Tokyo

The grandson has no choice but to become his grandfather-in-law's "Iinari". The grandchildren have no choice but to become their grandfather-in-law's in-laws, and the harassment hell they can't escape under one roof! Nana lives with her grandmother and her grandmother's second marriage partner. Her kind grandmother spoils Nana as she was when she was a little girl and does not treat her as a woman. One day, her grandmother asks her to go wash her step-grandfather's back while he is taking the first bath...