Karen, the head of the administrative bureau of Rihiana.
She dreams of a quiet retirement, but one day receives a grand order from the queen.

"I’m not ruling anymore. Find me a successor."

She finds a young boy named Ery, raises him, and prepares him for the role—but the grown-up Ery is no longer the gentle boy he once was.
Emotions ripple through her once-composed life, shaken at its core.