Sleepy Princess in the Demon Castle, Vol. 28

By: Kagiji Kumanomata

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Paperback | 29 August 2025

At a Glance

Paperback
168 Pages

Dimensions(cm)
19.05 x 12.7 x 1.78

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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.

Dreams are coming true at the Demon Castle—though unfortunately only the nightmarish kind! As the castle prepares for a historic meeting of the Demon World’s movers and shakers, will they be able to keep the chaos under control? Meanwhile, Zastur’s wayward clone is (kinda, sorta) dealt with, the Demon King’s (middle school) delinquent desires are made manifest, and the princess rocks some dragons in a battle for the seven (legally distinct) Dragun Balls!

About the Author

The creator of Sleepy Princess in the Demon Castle graduated from the BUNSEI University of Art. His first serialized series, Nuigurumi Crush, began in 2013 in Weekly Shonen Sunday S and concluded in 2015. Sleepy Princess began serialization in Weekly Shonen Sunday in 2016.

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