Sakura Hiden: Thoughts of Love, Riding Upon a Spring Breeze

Sakura Hiden is an original story illustrated by Masashi Kishimoto. It is the third book of the Naruto Hiden series.

Synopsis
As an excellent medical ninja of Konohagakure, Sakura Haruno was feeling hard-pressed. On the other hand, she hasn't confided the thoughts/feelings that were hidden in her chest… From the shadow of the peaceful village, a crawling darkness attacks Sakura and Konoha.