HKD-114 My grandchild has become physically addicted Asako Kitamori

Asako Kitamori (60 years old) lost her husband and is currently single, living with her son and his wife in a quiet area in a prefecture in the Kanto region. - Her grandson Takumi (22 years old) is a university student and lives alone in Tokyo. - Takumi decides to use his day off to get a driver's license and returns home for the first time in a while. - However, the son and his wife (Takumi's parents) go on a trip, leaving Asako and Takumi alone. - A forbidden relationship between grandchild and grandma begins with a small chance...