DELICATE FANTASY 1

Tatsuro Hoshino was a high school member of the boxing club.
He lived separately from his parents in order to attend school.
Since junior high he'd been with his girl, Natsumi Asagiri...
They were living together at her house.

Natsumi's parents were overseas, but she and Tatsuro weren't alone.
The "nanny" who took care of the mansion, and Natsumi's foreign cousin from England, Lisa Christie, were also there.
Their presence kept Tatsuro and Natsumi from getting intimate.

Now it seemed Lisa had an interest in Tatsuro, and using her big breasts as a weapon...