[Chinese]ADN-725 A record of incestuous sex between two siblings who live off the money left by their parents. Kashi Hikari.

My brother has become a shut-in ever since he was severely bullied at school.My mother couldn't abandon my brother, and before I knew it, she even started helping him with sex.Meanwhile, my parents suddenly passed away due to an accident, and my brother and I started living alone.My brother, who continues to stay in his room, demands that I have sex with him instead of my mother...I don't want it anymore...Even though I thought so, I couldn't abandon my brother...A simply distorted co-dependent relationship...we continue to fall into immoral sexual intercourse today.