Otsuki was born in Otaru, Hokkaido on February 21, 1988. She had her first AV shoot in July 2008[3] and debuted three months later in October 2008. She first appeared in an amateur pick-up (nanpa) AV titled Gyaruma Nanpahame MAX Vol.2[4] and had her first credited AV appearance in Dirty Amateur Series - Sweating When On Camera Hibiki Otsuki released on October 17, 2008 under the Ran Maru label.[5] During her first years in the industry Otsuki was a "project actress" (kikaku joyū) with no exclusive contract to a major AV talent agency or studio, leaving her to either work with small, independent production companies or to play small and sometimes even uncredited roles in ensemble productions