by Kagiji Kumanomata (Author)
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 Plenary Demon Conference is finally here! With all the Demon World's movers and shakers gathered in one spot, surely there's no way whatsoever that Princess Syalis will mess it up--certainly not by becoming a giant nightmare-infused monster bearing the dark and hidden secret behind the origin of the ongoing war between the humans and the demons! Also, there's some good ol' fashioned dungeon crawling!
Author Biography
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.
Number of Pages: 168
Dimensions: 0.6 x 7.4 x 5 IN
Publication Date: March 10, 2026
