HOMA-009 You can't tell big brother, right? My weak girlfriend (little sister) was made to service him multiple times because my senior held her secret!

Umi spends honeymoon days with her brother without telling her parents. A sweet secret relationship is destroyed by rape! A good friend brother and sister seeking bodies every night secretly to their parents are torn apart by one man! Her younger sister, Umi, who has been raped, is unable to reveal her truth to her beloved older brother. She is played with her body many times and her body feels sensitive contrary to her feelings. She was about to give up on Umi, but in order to regain her honeymoon days with her brother, she struggles and fights against her insults!