I Replaced My Cheating Lover with A Pit King

In a modern world ruled by witches, low-tier potion maker Calista finally replaces her cruel, cheating lover with Kyle, a feared fighter destined for the death pits. But Kyle is far more dangerous than anyone realizes. As his obsessive devotion awakens Calista’s long-buried power, her humiliating past becomes the spark for a ruthless rise neither her ex nor the witch elite saw coming.