MISM-074 Yuna (23), a tall perverted piano teacher, plays lewd melodies with violent piston thrusts and nipple torture.

Film Introduction

Yuna-san, who teaches piano (tentatively), is said to have a tough personality based on her appearance, but in reality, she's the opposite—a total masochist. She's a sister who wants to be pushed to the limit and reach orgasm. For her own pleasure, she swallows and accepts even perverted demands. We fulfilled the desires of this beautiful, perverted sister.