Rebirth Dungeon: Ace Healing Assassin

The top ace assassin in the game in his previous life was stabbed in the back by his teammates and sacrificed to the Demon King in exchange for a hundred years of peace. He was unexpectedly reborn in the same world. Although I can't return to the real world, I still set out again with hatred in my heart. Dual cultivation professions, single dungeon grinding, since there is no way to return to the real world, then this is the reality! I don't have the ability to solve it, let me pass it in one life! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.