[1] After voicing characters in Gravitation, Hamtaro and Bōken Jidai Katsugeki Goemon in 2000,[2] she starred as Shin in Prétear (2001) and Itsuki Akiba in I"s (2002).
[2][3] She starred as Nagatsuki Kuron in Happy Lesson Advanced, Tsubaki Minashiro in Fafner in the Azure, and as Neneko in Yumeria,[3] and she was one of the singers of the latter's opening song, "24-Jikan Aishiteru".
[2][1] Nakanishi reprised her role as Tsubaki Minashiro in the 2010 film Fafner in the Azure: Dead Aggressor: Heaven and Earth and the 2015 anime sequel Fafner in the Azure: Dead Aggressor: Exodus, also voicing Orihime Minashiro in the latter.
[5] In addition to voicing Razania in Kyo Kara Maoh!, Kuroko Tetsuyanagi in Love Get Chu, Ete in Prism Ark, Ai Nanao in Kanokon, and Asato Luca in Accel World, she also voiced minor characters in Paranoia Agent, IGPX, Loveless, D.Gray-man, Powerpuff Girls Z, and Renkin 3-kyū Magical?
[2] Nakanishi also worked in stage acting; she was part of the theatrical trio Carne, which had its first performance at Akashi Studio, Kōenji, in October 2008.