PARATHD-2454 Document close ● play (4) ~ Sister who robs her brother-in-law's virginity!

◆ The 4th in the "Document Close ● Incest" series that approaches the forbidden relationship that should never be committed! This time, an older sister who has fallen in love with her virgin brother-in-law as an idol nerd appears. The older sister who has no choice but to make a strong promise with her brother-in-law. The promise is, "If you can't graduate from virginity by the next birthday, your sister will take it." A brother-in-law who has no dating experience cannot graduate from virginity ... The fate of this sibling is ...