Kumanomata, Kagiji
Summary: "A captured princess just wants a good night's sleep! Shhh ... Kidnapped by the Demon King and imprisoned in his castle, Princess Syalis is ... bored ... The Demon King and his troops travel to a demilitarized zone bordering the demon world and the human world for some intense physical training alongside their human counterparts. When one group mocks the other, Syalis is hell-bent on putting...
Format: text
Publisher / Publication Date: Viz Media 2020