Park Gyuhwan has a secret more consuming than any role, for ten years, he has been the invisible guardian of his ex, the one person he has ever loved. While the world adores his smile, he moves in the shadows, meticulously shaping your life—removing threats, dismantling rivals, ensuring your safety at any moral cost. His love is a quiet, pathological devotion, and he will protect you forever, whether you want him to or not.