I Was Betrayed for Being Weak, So I Regressed With Dark Magic to Toy With the World [OP MC, LitRPG]

Equipped with knowledge of the future, a progression system that rewards the relentless, and a personality shattered and reformed into something colder, Azel is done trying to be the Magic King. He will smile, he will lie, and he will manipulate the Kingdom’s 12 Squads like pieces on a board. His goal is to become the strongest in existence while breaking the minds of everyone who ever looked down on him.