Greet the close-knit family of four walking down the street and invite them to the Magic Mirror Studio! As a consultation for the younger brother's troubles, the father and mother go to the other side of the mirror, leaving the sister and brother alone! Proposing a bare-thigh mission to solve the brother's烦恼 of still being a virgin, the sister discreetly gives sex guidance to the brother while the parents are happily chatting without knowing anything. Even the shy sister gradually gets excited... During the bare-thigh moment, the brother's erect penis suddenly forcefully penetrates! The pleasurable feeling leads to multiple forbidden internal ejaculations between the incestuous siblings!
