My mother remarried and I started living with my new stepfather... but his real purpose was to rape me, a high school girl. Under the same roof with no way to escape. I was threatened, secretly filmed, forced to take suspicious drugs, and my body was licked all over, a humiliating day after day. Even though I knew it was wrong... he thrust his dick into me without question, and I gradually fell into the swamp of my stepfather's dick, both body and Kokoro... "Mom... I'm sorry." An S1 full-scale rape drama in which an innocent girl is violated by her stepfather's madness.