Naru Nanao has worked on numerous adult visual novels due to her status as a free illustrator and not being affiliated with one single company; she is primarily a character designer.
In 2002, Nanao provided character design in Circus' first D.C.: Da Capo game for three heroines: Nemu Asakura, Sakura Yoshino, and Kotori Shirakawa.
In 2006, Nanao started working with Minori on their game series Ef: A Fairy Tale of the Two by providing female character design.
She worked with Tryfirst as the character designer on the Nintendo DS visual novel Majo ni Naru (魔女になる。), released in Japan in 2009.
[4] Before becoming well-known with D.C.: Da Capo, her style of character art at that time was often compared to Misato Mitsumi, another artist known for her work on Comic Party.
Clothing, especially Japanese school uniforms, is often simple in design but very diverse, such as in regard to collars, sleeves, or skirt hems.