Sleepy Princess in the Demon Castle

魔王城でおやすみ

Princess Syalis is taken captive by the Demon King and held in his castle as a bargaining chip against the human kingdom, but captivity bores her more than it frightens her. Worn out by the demands of royal life, she decides her one goal is a perfect night's sleep, and she raids the castle for materials, picks fights with its monsters, and turns the dungeon upside down to get it. Her baffled jailers can only watch their prisoner run the place.