[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.

Otsuki herself remarked her early years "difficult", as she struggled to find good roles and often contemplated retirement.

[8] Otsuki's consistency, work ethic, professionalism and willingness of not shying away from the more extreme side of the industry (including S&M, simulated rape and even urolagnia) has gained her a growing popularity and acclaim, and by 2012 she was working with the more prominent porn studios of Japan like Moodyz[9] or Soft On Demand.

By 2014, Otsuki became one of the industry's most reliable and acclaimed performers, collaborating with famous AV actresses like Ayu Sakurai,[11] Saki Hatsumi, Ai Uehara,[12] Ayaka Tomoda[13] and many others.

[15][7] In August 2016, along with Yui Hatano and Ruka Kanae, she became a member of T♡Project an idol group that specializes in Anime and Vocaloid songs.