Yumi Sin, born on July 24, 2000, in Florida, USA, is an American adult film actress of mixed Asian heritage, including Cambodian, Vietnamese, and Chinese descent. Standing at just 4 feet 10 inches (147 cm) tall and weighing 99 lbs (45 kg), she boasts measurements of 32C-24-33, with striking brown eyes and versatile black or blond hair. A Leo by zodiac sign, Yumi entered the adult industry in 2021 at age 21 and has since starred in over 98 films, earning a 2026 AVN Award nomination for Best Blowbang Scene in 'Yumi Sin Gets Swarmed In A Six Man Blow Bang' (2024). Adorned with numerous tattoos—including butterflies, a Leviathan Cross, Playboy bunny, snakes, spiders, and hearts across her body—and piercings in her septum, lower lip, and navel, she embodies a bold, edgy aesthetic. Known professionally also as Bella Mercury, Yumi maintains an active presence on social media, particularly Instagram (@sinforyumi), where she engages fans with her vibrant personality and alluring content. Her petite frame and enthusiastic performances have quickly made her a rising star in the industry.