Oboro Junincho

Itagi, a low-caste ninja, lived in the village in service to his master Tajuro. As his fate as a low-ranked shinobi, Itagi was never thanked, his wounds were never healed, and all the credit belonged to Tajuro... When the kunoichi Oboro, Tajuro's fiancee, tried to defend Itagi, Tajuro exacted terrible punishment on Itagi....

(Source: Sukima, translated)