Bastion (Immortal Great Souls Book 1)

 Scorio will rise from the ashes to conquer the ten layers of hell.
Reborn without memories, Scorio learns that he is a Great Soul, a legendary defender of the ancient city of Bastion. That within the hallowed halls of the Academy and under the stern eyes of the underworld’s greatest instructors he will enjoy enormous privilege, rediscover unique and wondrous powers, and one day return to the millennium-old battle against their infernal foes.
Until he is betrayed. Singled out and sentenced to die for crimes he can't remember, Scorio is hurled to his doom—and forgotten.
But from even the dimmest spark an inferno may one day rage.
Clawing his way back from oblivion, Scorio vows to return to the Academy at any cost. To emerge from the ruins and within those golden walls defeat his elite classmates in a quest to ascend the ranks and change the course of history. For only then will he learn about his forgotten past, and why his enemies have rightly feared him since the day he was reborn.