Eru-chan, a clingy girl who loves her big brother, is an ○ student. While playing with her beloved big brother and tickling each other's bodies, she started to feel itchy down there? When she had her big brother check between her legs, he found her panties soaked! It seems Eru-chan had unknowingly gotten into the mood! So, her perverted brother, who is into lolis and sister complexes, decided to teach his little sister some sexy lessons!
