Minori is an ordinary schoolgirl living with her parents in a seemingly normal household. However, on days when her mother is away, she is subjected to an abnormal daily routine—being sexually abused by her father. Though she knows it's wrong and tries to resist, she finds herself unable to stop complying. Gradually, the acts begin to bring her pleasure. Her entire body is stimulated by her father's cock, her consciousness growing hazy with each passing moment. The pure, innocent girl she once was can never return. Under her father's touch, her body slowly transforms, sinking deeper into pleasure. This goes beyond mere sexual abuse, leaving deep emotional scars on her psyche.