Sleepy Princess in the Demon Castle, Vol. 29: Volume 29
By (Author) Kagiji Kumanomata
Viz Media, Subs. of Shogakukan Inc
Viz Media, Subs. of Shogakukan Inc
5th December 2026
United States
General
Fiction
Graphic novel / Comic book / Manga: Fantasy, esoteric
168
Width 127mm, Height 191mm
111g
A captured princess just wants a good nights sleep! Shhh
Kidnapped by the Demon King and imprisoned in his castle, Princess Syalis isbored.
The Plenary Demon Conference is finally here! With all the Demon Worlds movers and shakers gathered in one spot, surely there is no way whatsoever that Princess Syalis will find a way to make a mess of thingsand definitely not by becoming a giant, nightmare-infused monster bearing the dark secret behind the origin of the ongoing war between the humans and demons! Also, some good ol fashioned dungeon crawling!
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.