After my beloved mother passed away, I was living with my hated father in an old apartment when suddenly, one day, that woman showed up... Hitomi-san was a beautiful woman who was completely out of place with my father, and she was always showing off her cleavage and underwear... I didn't know where to look and stayed locked in my room the whole time. However, Hitomi-san ended up taking care of me for a few days when my father was hospitalized after an accident, and so our strange life together began...