Miyu Oto was raised single-handedly by her stepdad. At 18 her body suddenly became outrageously erotic — breasts so big they burst out of her uniform.
One day stepdad catches her masturbating, barges in and pins her to the bed.
“Daddy… don’t look…” but he rips her uniform open and forces himself inside; her cries turn into moans.
From then on every day after school she’s taken in the living room, kitchen, bathroom — anywhere.
Eventually Miyu fully accepts it, even seducing him in lingerie saying “Be rougher with me today, Daddy.”