Adorable and sweet, 60-year-old milf Runa Otsuki makes her AV debut with Ruby under the Yang Guifei label. Married for about five years and recently experiencing a sexless relationship, she remains relatively inexperienced despite her age. When she had her first sexual encounter with a 37-year-old man, she found the experience surprisingly fresh and was extremely nervous. In this release, Runa takes part in a threesome and performs masturbation on camera, visibly tense throughout. Her genuine anxiety is captured in vivid detail, allowing viewers to fully feel her nervous energy and the erotic atmosphere. This is the first shoot in the "First Shoot at Sixtieth Birthday" series, featuring creampie, milf, beautiful girl, and threesome genres.