Inspired by Sekiro: during a duel with new bad guys Auror Harry loses his lower left arm and wakes up in a temple with an skeletal prosthetic for an left arm. The monk who saved calls it a Shinobi's prosthetic and he must stop the bad guys for continueing their evil plan but he must take heed. The more he kills the more of a toll it takes on his soul and if he kills too many he runs into the threat of being turned into a shura. A mindless wardemon that lives only for violence. Fleur would be his liasion for this entire thing, being there with him in the duel that cost him an arm and later on becomes the one person, the reason for him to not lose himself with his new found power and become shura.