The Enchainment.

They were never meant to stand side by side. She was his fiercest rival—the girl who once aimed a gun at him and pulled the trigger. He was the enemy she swore to hate, the man whose name alone ignited fire in her veins. But destiny is cruel. Bound by a marriage neither of them chose, they are forced into a union forged in blood, betrayal, and a past that refuses to die. Every glance burns. Every touch is a war. And every night, the thin line between hate and desire begins to blur. In this dangerous game of obsession and power, she must decide—will she destroy him, or will she be the one destroyed when hate turns into something far darker than love?