Kosaka Jun was born on August 8, 1986, in Saitama Prefecture. She is 156cm tall with a voluptuous figure (B90cm G-cup, W60, H86). Her blood type is A, and she has a gentle personality. She rose to fame with her loli-like face and voluptuous figure, and as a stripper, she is also popular for her outgoing personality, cute smile, and down-to-earth image. Her large, watery eyes are her greatest charm. In her highly anticipated first Japanese erotic film, she features scenes of threesomes, oral sex, ejaculation inside her, and anal penetration; she performs sexy oral sex while wearing office lady attire; she engages in passionate sex while wearing a Chinese cheongsam; she plays a female doctor in a clinic for self-pleasure; and she even performs a spectacular threesome while wearing a sailor uniform!