Kagiji Kumanomata

A captured princess just wants a good night’s sleep! Imprisoned in the castle of the Demon King, all spoiled-sweet Princess Syalis dreams of is a good night’s sleep! Shhh... Kidnapped by the Demon King and imprisoned in his castle, Princess Syalis is…bored. She decides to while away the hours by sleeping, but getting a good night’s rest turns out to be a lot of work! She begins by fashioning a DIY pillow out of the fur of her Teddy Demon guards and an “air mattress” from the magical Shield of the Wind. The princess’s hapless demonic guards soon discover that their captive expects to be treated like, well, a princess. Things go from bad to worse—for her captors—when some of Princess Syalis’s schemes end in her untimely—if temporary—demise and she chooses the Forbidden Grimoire for her bedtime reading…

Sleepy Princess in the Demon Castle

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.

Winter has come, and Princess Syalis will do anything to stay warm, including creating a DIY magical device (known as a “Ko-tatsu”), knitting woolen underwear and trying to convince the castle blacksmith to make her a window to keep out the drafts. When she accidentally dies yet again—along with Stamper Cat—curious resurrection complications ensue. Then it’s Christmas and New Year’s! Who will the Demon King designate as naughty or nice? And will all of the other demons let poor Syalis join in any demon games…? And now the Demon King has insomnia!

Sleepy Princess in the Demon Castle, Vol. 3

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.

While waiting to be rescued, Princess Syalis makes herself at home by commandeering a bathtub, befriending (sort of) a cute demon girl and participating in a castle fitness challenge. Her plots to get some shut-eye include stealing ice from Ice Demons to cool off on a hot summer night, attempting to make her own waterbed, toying with magic spells and provoking an enchanted flower into releasing a soporific. And then the nightmares begin…

Sleepy Princess in the Demon Castle, Vol. 2

魔王城でおやすみ 1 [Maou-jou de Oyasumi 1]

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. Celebrate New Year’s, Valentine’s Day and a very special pajama party at the Demon Castle with the princess and her demon friends—er, captors! Then the Five-ring-pics athletic tournament captures the imagination of demons and human alike. But when one of the athletes turns the demons’ human friend—er, hostage—into a besotted fangirl, the castle staff doesn’t take it well. Also, Syalis imbibes a potion that induces her greatest fear, Demon King Twilight desperately tries to change his image and the hero Dawner adds a certain someone to his unwelcome rescue party.

Sleepy Princess in the Demon Castle, Vol. 11

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. When the Demon Castle collapses (unbelievably, not due to the actions of the usual suspect!), its staff and “guest” must go glamping in the surrounding environs. Rebuilding is taking too long, however, so Demon King Twilight resorts to drastic measures. Now everyone is afraid of him—except for the one resident who still sees him for who he truly is. Plus, the princess tries to unveil Fire Venom Dragon, grimoire Alazif finally finds someone to appreciate him, and the hero actually makes some progress!

Sleepy Princess in the Demon Castle, Vol. 18

Princess Syalis’s luxurious lifestyle is wreaking havoc on the Demon Castle’s budget. When the Demon King cuts back on expenses so that she is no longer supported in the style to which she is accustomed, the princess must find other strategies to satisfy her extravagant tastes. Then, when the newly hired demon staff arrive for their orientation at the Demon Castle—complete with a hot springs retreat!—the current staff are loath to admit that they’ve lost control of their hostage. What will happen when the newbies discover that the “Scissors Demon” is actually a terrifying, bratty human girl?! -- VIZ Media

Sleepy Princess in the Demon Castle, Vol. 8

Princess Syalis has a new admirer, and the other demons are jealous—one in particular. How far will he go to dissuade her weaselly suitor? Then summer arrives! Syalis tries to cool off by telling ghost stories to make herself shiver but instead strikes fear into her demon captors’ hearts. Then the Demon Cleric botches a resurrection, accidentally merging himself with another, cuter demon. And finally it’s time for the Demon Castle Super Summer Festival! Naturally Syalis enters the beauty pageant. Who will be her competition? Wait—are those demons...in drag?! -- VIZ Media

Sleepy Princess in the Demon Castle, Vol. 9

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 prestigious Royal Demon Academy needs to be inspected, but who is best suited for the job when former Demon King Midnight has, so to speak, shrunk from the task? Not the ones who end up going! In metafictional rather than supernatural news, when the gang finds out an anime is being made of Sleepy Princess in the Demon Castle, everyone vies for a starring role. Unfortunately, watching the show when it airs turns out to be a major challenge. Worse, when Syalis doesn’t get resurrected in a timely manner after one of her little “accidents,” she turns into…Zombie Princess!

Sleepy Princess in the Demon Castle, Vol. 17

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. Princess Syalis’s luxurious lifestyle is wreaking havoc on the Demon Castle’s budget! When the Demon King cuts back on expenses so that she is no longer supported in the style she is accustomed to, the princess must find other strategies to satisfy her extravagant taste. Then, when the newly hired demon staff arrive for their orientation at the Demon Castle—complete with a hot springs retreat—the current staff is loath to admit that they’ve lost control of their hostage. What will happen when the newbies discover that the “Scissors Demon” joining in their training is actually a terrifying, bratty human girl?!

Princess Syalis manages to mess up Christmas and Valentine’s Day...again. Then, when Syalis and her demon captors pay a visit to her kingdom of Goodereste, a demon stands in for the princess...and winds up needing to be kidnapped herself! A common enemy forces Syalis and her archnemesis Poseidon to team up. And Syalis messes up more things, including a Demon Castle hot pot party and a Demon King educational biopic. But she still manages to find some good opportunities for relaxing naps... -- VIZ Media

Sleepy Princess in the Demon Castle, Vol. 7

Princess Syalis comes to the surprising conclusion that being good will earn her a good night’s sleep! But none of the demons trust her sudden transformation. The princess’s latest dilemmas include a growing urge to use the bathroom when it’s out of order, her pet Eggplant Seal outgrowing her quarters, and growing into a giant instead of up. And then it’s time for the castle’s Hostage Reeducation Week... Plus, a visit to demon preschool! -- VIZ Media

Kagiji Kumanomata

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