One day, a slender but busty older woman dressed provocatively walked right past Shota. When he discovered she was actually his friend's older sister, Honoka, Shota made a sudden visit to his friend's house! Seeing Honoka walking around the house defenselessly in thin clothing, her slender yet busty figure made his heart race and got him incredibly horny just by looking! Pretending to be spoiled, he starts playing naughty pranks with her breasts!