"Original Japanese edition published by Shogakukan"--Colophon.

Publisher Marketing: 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. Publisher Marketing : A captured princess just wants a good night's sleep! Shhh...

Format: Paperback | Pages: 176 | Publication Date: 2018-06-12