A flawless billionaire CEO hides a terrifying truth - he is an immortal executioner bound to an ancient order that silently shapes human history through death. When a fearless prosecutor is assigned to uncover a string of impossible killings tied to him, she becomes his greatest threat, and his only weakness. But neither of them knows the deepest truth: She is not just hunting him. She was born from a forgotten bloodline engineered to erase immortals like him from existence. And he is the reason her bloodline was nearly wiped out.