In 2006, Nanao teamed up with Naoki Hisaya (main writer of Kanon) to produce the original series Sola. Nanao provided the original character design for the project which was used as a template for the character design in the Sola anime and manga series.
In 2006, Nanao formed an alliance with Naoki Hisaya (the primary writer behind Kanon) to create the original Sola series. Nanao's initial character design served as a foundation for the characters that appeared in both the Sola anime and manga adaptations.