After dodging reincarnation for three centuries just to take eternal naps, ancient soul Isolde is shoved into the mortal shell of an unappreciated northern border guard. Desiring nothing more than soft pillows and undisturbed afternoon sleep, she endures the bitter winter garrison without complaining about her meager rations.
Chaos strikes when the knight family's biological daughter returns, confiscating Isolde's hard-won combat badge and framing her for garrison treason. Unfazed by the hostile accusations, Isolde lets the court inquisitors investigate, only for royal imperial blood seals to reveal she is actually the sovereign's long-lost crown princess, securing the luxurious, pampered slumber she always craved.
