Poor little brother watches his stepsister having sex with his best friend: This little boy invited his best friend home to play, not knowing what the other boy's taste was but he also liked his best friend's older sister named Nao Jinguji. Nao Jinguji didn't care much about these kids, until the other boy approached and propositioned him. Nao Jinguji seemed innocent at first, but the other boy didn't give him a chance to respond, just fucked him savagely. The little brother could only cry at the sight. Will the two of them be able to get together when the age gap is quite large?