A tall, slender beauty working at an unnamed company in Marunouchi debuts in AV. She has a refined older sister vibe but leans towards being a bit perverted. She enjoys being teased and even likes strangulation during sex, but when she drinks... her perverted side becomes even more unleashed! As soon as she gets drunk, she starts craving sex and becomes increasingly horny, eventually letting loose all her sexual desires! Watch this erotic big sister transform into a dirty big sister who can't control herself anymore!