Sleepy Princess in the Demon Castle, Vol. 25 by Kagiji Kumanomata

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 mysteries of the missing member of the Ten Guardians and the castle-wide gender swap are simultaneously solved. Bean-based holidays are mixed up and celebrated by Agave and Syalis. Emotions run high as the Demon King and hero run into each other-and the secret of Twilight's first love is finally revealed (to him). There's also Teddy Demon transformations, concerning commentary about confidential content, boisterous baking, vexing vacations, and more!
Binding: Paperback / softback