Skip to product information
1 of 1

Sleepy Princess in the Demon Castle, Vol. 30

Sleepy Princess in the Demon Castle, Vol. 30

By Kagiji Kumanomata
Paperback
Regular price $11.99
Regular price Sale price $11.99
Sale Sold out
Quantity
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 fun and the nightmares continue as the plague of dreams that become reality continues to spread! But whether it's facing down the boss of a dungeon (who's also your dad), accidentally unleashing another round of (even more widespread) gender-bending, needing to shop at the (really expensive) supermarket, or just having all your friends (from work) bail on you, no nightmare can prepare the Demon Army for the terror that is the accidental arrival of the hero Dawner straight into the heart of the castle!

Author: Kagiji Kumanomata
Binding Type: Paperback
Publisher: Viz Media
Published: 06/09/2026
Series: Sleepy Princess in the Demon Castle #30
Pages: 168
Weight: 0.33lbs
Size: 7.46h x 5.14w x 0.57d
ISBN: 9781974716647

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.
View full details

solo star Here to help

Frequently asked questions

You’ve asked, we answered.

Visit FAQ Page

Do you offer free shipping?

We offer free shipping on all orders over $75.

As a small, growing shop, we partner with trusted distributors to ship books directly to you. This allows us to offer a much wider selection while we build toward our first physical space.

We also use tiered shipping, which means the more you add to your cart, the lower the shipping cost per book becomes. So that means, even if you’re not quite at $75 yet, it often makes sense to grab one more volume and save overall.

Why shop with you instead of big retailers?

Every order supports a small, Latina-owned manga shop built by real fans who care deeply about the stories, the art, and the culture around it.

We curate with intention, not algorithms, and we’re building something bigger than a storefront: a space for collectors, readers, and fans to connect.

What is your return policy?

Because of how we currently fulfill orders, we’re not able to accept general returns at this time.

The only exception is if your order arrives damaged or incorrect. If you experience either, please reach out to us at casitademanga@gmail.com
and we’ll be more than happy to personally help you with a damage/error return.

Can I cancel or change my order?

We move quickly to get your order on its way.

If you need to make a change, contact us as soon as possible and we’ll do our best to catch it before it ships. Once it’s on the way, we’re unable to modify the order.