Beautiful and kind popular female announcer, Yuka Arai. However, in front of her younger brother, she was a mean older sister who bossed him around! She made her brother's friend give blowjobs, lick balls, film sex reports, have bathroom sex while being watched, and engage in 3P sex excluding friends, showing her brother lewd acts to torment him. Even after confessing her love and having her first time with him, she kept doing things that would make him jealous. Will the siscon younger brother be able to be together with his beloved older sister…?
