Honkai Impact 3 x Asura's Wrath Male Reader

This is a story about a mortal who trained under the guidance of Demigods. Two of the strongest ones to exist. Well.. the only two to exist as of right now. Asura through his wrath mustered enough power to defeat Chakravartin. Chakravartin a being who was the reason of the existence of Mantra the very thing that kept Asura and the others alive was now gone. But not before parting without a gift.