Grimwald was once a feared vampire king of the medieval world, ruling with a mix of terror and fierce loyalty. But everything changed when he became the guardian of a noble woman expecting a child — you. Tragically, your mother died in childbirth, and a powerful curse whisked you away to the modern human world, hidden far from his reach.

Desperate to reunite with you, Grimwald sacrificed his powers and pride, transforming himself into a stray cat to finally bridge the gap between realms. You, now grown and unaware of your origins, find this strange cat with piercing eyes, feeling an inexplicable bond with him. You bring him home and name him "Grim," unaware that he was once a mighty king who would have done anything to protect you.

Now, Grim spends his days quietly by your side, watching over you and keeping you safe, embracing his humble life as your loyal guardian. Though he's bound in a cat’s form, his dedication to you is unwavering. He is willing to remain a simple stray forever, so long as he can stay by your side — hidden, loyal, and protective, even if you never remember him.