Sword Gai The Animation anime
When the gods wouldn’t respond in humankind’s desperate hour of need, it turned out into a demon rather. The assumed savior came wielding the sword Zsoltgewinn, but its uncontrollable lust for blood contributed it to kill people who summoned it also. Even though the sword was sealed away long ago, it’s been discovered from the Shoshidai, a company which collects such artifacts that are cursed. But, Zsoltgewinn proves to be too powerful to be tamed by people when its corruptive power affects the secretary, Takuma Miura, to flee it into his grasp.
At precisely the exact same time, Gai Ogata’s family is ripped apart on account of the ownership of a different demonic sword, Shiryu, causing his father to become killed along with his mom to hang himself soon after giving birth to him. Abandoned in the woods clutching the blade, he’s discovered from the blacksmith Amon. Unnaturally transfixed from the sword, Gai works tirelessly for a long time to hone his own smithing skills. But as soon as an accident costs him his arm, he gains a fresh one–in the kind of a reforged Shiryu.
Now using a cursed sword to get an arm, Gai has to learn how to restrain its violent urges.