Miu ended up marrying a man who had left deep emotional scars on her. Moving into his family home, she one day discovers that his older brother is the very man who once raped her repeatedly. Shaken by the revelation, she flees in desperation—only to cross paths with him again. Despite her fear and resistance, he stands beside her once more. Known as the worthless brother-in-law, he harbors a twisted obsession: violating Miu is the only thing that gives his life meaning. Behind her family's back, Miu is raped by him every day. This story delves into her inner darkness, portraying an extreme relationship where love and hatred intertwine.