RBD-769 [Uncensored Leaked] The day my sister became mine alone, Konishi Yu

Yuu's marriage is already in the cards and her job as an office lady is going smoothly, but her only worry is that her younger brother Kazu has suddenly stopped going to school and shut himself up in his room. When Kazu finds out about his sister's marriage, he goes on a rampage, becoming violent towards their mother and committing forbidden acts against his sister...