Mitama Shinobi 

御魂～忍～ 巻の一

The world has fallen into disorder, it divided into the north and the south and after kakamura has been destroyed both lands now fight over the world.  capitals gave been born, one in the north and one in the south with its respective Emperor. In this age there are people  who live as Shinobi/Ninjas...

Mitama Shinobi Vol. 1  RAW

Mitama Shinobi Vol. 2  RAW