Hanzou to Juusannin no Kunoichi-tachi

The story is set in the village of Asama and follows Hanzou, a young orphan who dreams of becoming an elite ninja. Under the tutelage of the legendary and eccentric kunoichi Yata—a powerful warrior with an overwhelming personality Hanzou undergoes rigorous training while developing a deep bond with his mentor. When the villainous Honkiri Family attacks the village, Yata and the other kunoichis must defend their home. It is during this decisive moment that Hanzou witnesses the true meaning of "determination" and understands the weight of the responsibility to protect those he loves. The manga blends moments of everyday comedy, harsh training, and intense action, exploring Hanzou's journey from childhood to becoming an official ninja and forming his own team of comrades.

(Source: MangaDex)