Bitch na Inane-sama

The main character of hentai is an ordinary office employee with no personal life, who lives in a small apartment with her younger brother. Once, during the next cleaning, she came across anal porn, which apparently, her brother carefully hid. Curiosity overcame her and our heroine began to watch a depraved video. Soon after, the heroine became obsessed with the idea of anal sex and the only one she could count on was her own little brother…