Performed by sisters! First up is Yuko, the older sister who has a cool and beautiful image. She has a bright personality and is easy to talk to, and she is currently a piano teacher. She grew up in a strict and cramped family environment with both parents being teachers in her old home, and had a normal sex life with four people in her hometown.However, she moved to Tokyo from Nagano to enter Tokyo's music college, and lived alone and had a difficult time with the people around her. Feeling the freedom of not having to worry about her eyes, she had sex with a man she met on a blind date, and now she is a lewd and free-spirited woman. Please take a look at her sister's lewd behavior as she gets wild and cums without even knowing that her sister is performing. In the second half, she reveals her lewd nature in CA costume.
