My Demon Lord System Amulet

Addux Kaname goes back in history after almost losing a fight with a demon.His life repeats without him knowing it. He becomes one helpless guy. He is beaten to a pulp but he is saved by a cute girl who invites him to her school. It gets More crazy when the girl discloses that she was just after the amulet he was wearing inorder to revive a powerful demon known as Berxly who has the power to free her and other demons from the reign of Destroyer. Addux gets caught up in the mix and becomes a vessel for demon Berxly