War God of the Abyss

Written off by his adoptive family as a timid, overlooked foster son, a young man in the city hides a remarkable secret. Beneath his quiet exterior lies a martial prodigy who can call down celestial thunder. Years of being dismissed have left him patient, but his hidden power is slowly becoming impossible to contain. As his true strength begins to surface, those who looked down on him are about to face a reckoning.