Serina Hayakawa (早川瀬里奈), born on February 4, 1986, in Ibaraki Prefecture, Japan, is a retired Japanese adult video (AV) actress. With a height of 160 cm, measurements of B86-W57-H83 (D cup), and blood type A, she debuted in the AV industry in December 2005. Initially, her roles emphasized acting, such as a daughter repaying her father's debt, but she later embraced harder content including dark themes and even anal scenes. Active from 2005 to 2010, she made a comeback in 2015, though faced challenges from evolving industry standards, retiring in December 2017. She also starred in erotic films like 'The Forbidden Legend: Sex & Chopsticks' (2008). In July 2019, Hayakawa married a businessman she met playing golf, and they live together happily. Renowned for her slender figure, natural beauty, and versatile performances, she remains a memorable figure in JAV history.