Kagetora

Kagetora (カゲトラ) is a manga written by Akira Segami. It has been licensed in North America by Del Rey and consists of 11 volumes.

Plot
The story is about a male ninja named Kagetora, whose job is to teach the arts of self-defense and combat to the female heir of a renowned family of skilled martial artists, Yuki. Kagetora falls in love with her, but since a ninja is forbidden to fall in love with their lord (or in this case, lady), he struggles to hold back his feelings. The story deals with Kagetora struggling with his sense of duty and his love for Yuki. Yuki also develops feelings for him later on. However, since it is forbidden for their love to be, how will they react to this? Will Kagetora be able to make it?