SLEEPY PRINCESS IN DEMON CASTLE GN (2025)

"While waiting to be rescued, Princess Syalis is so bored out of her mind that she just wants to sleep away the time. But the Demon Castle is terrifying...ly uncomfortable! What's a princess to do to catch some Zzz's other than fashion a pillow out of her captors and make an air mattress from a sacred shield? Unfortunately, her many schemes can only try the patience of the Demon King and his put-upon minions for so long...right? For teen audiences. "

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

"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! For teen audiences. "

"Valentine's Day arrives and Princess Syalis is hard put to get the haul of chocolate she's accustomed to receiving back home in her kingdom. Her latest plots to get a better night's rest include learning to hibernate, becoming a ghost and getting an annoying earworm out of her head. And how can she put a stop to the Teddy Demons summoning her every time they get into a kerfuffle...? Then the princess gets kidnapped from her kidnappers! For teen audiences. "

"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! For teen audiences. "

"Accompanied by an entourage of demon guards, Princess Syalis takes a field trip to the human world to acquire a special pillow. Then she receives several invitations from her demon captors: First, to replace the cooks who have succumbed to heat exhaustion in the Demon Castle kitchen (somebody needs to make Quilladillo's Monster Bird Egg Custard). Second, to attend a pajama party (despite being woefully ignorant of the concept). And third, to design a new area for the hero to explore (which turns out to be the exact opposite of what the demons had in mind). For teen audiences. "

"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... For teen audiences. "

"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?! For teen audiences."

"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?! For teen audiences. "

"Princess Syalis refuses to play the part of the damsel in distress in a video begging Dawner, the bumbling knight in hining armor, to rescue her. Instead, she wants to be an armchair detective, a D.I.Y. hairdresser, and best friend to all hings furry. But she is mistaken for Poseidon's girlfriend, an assassin, and most shockingly of all, Demon King Twilight's wife. How will Midnight (Twilight's father and the former demon king) take to his son's wife-er, hostage princess? And will the temperamental, dangerous old demon approve of the way his son is running the kingdom...? For teen audiences. "

"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 Rings athletic tournament captures the imagination of demons and human alike. 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 rescue party."

"The Demon Castle staff procure a ? ock of Monster Bird chicks to ensure a steady supply of eggs, but their problems only grow."

"The Demon King and his troops travel to a demilitarized zone bordering the demon world and the human world for some intense physical training alongside their human counterparts. When one group mocks the other, Syalis is hell-bent on revenge! While the Demon Castle recovers from their boot camp, the princess saves the day...and wrecks it even more. Then, an integral member of the Demon Castle staff resigns and heads for home...with the rest of the demons and one human in hot pursuit! For teen audiences. "

When things seem too peaceful in the Demon Castle, the demons investigate and find the princess in a literal bind. Having stolen a gizmo to create alternate dimensions, Princess Syalis uses it to do good in the world. Just kidding! Of course she uses it for her own (and the Teddy Demons') selfish gain. Then, a lightning storm reveals one demon is (predictably) even more frightened of thunder than the princess. Quilladillo goes on vacation only to discover he has a stowaway in his trunk, but it's not the princess. Just kidding! Of course it is. And then a relative of the princess appears in the castle! What are the demon hostage takers to do...?! For teen audiences.

The sun shines on the Demon Castle...but it's supposed to be perpetual night in the Demon World! Then Zeus-Poseidon and Hades' little brother-joins the Demon Castle staff. Everyone is in awe of him except the princess, who quickly finds ways to use the most powerful of the mythological gods to help her achieve her ongoing and current personal goals of sleeping better and opening a cat cafe. Then, in a stunning reversal of fortune, an important castle inhabitant is taken hostage! Will Syalis help the rescue team's efforts or hinder them? Plus, a very special Sleepy Princess/Doraemon crossover episode! For teen audiences.

Demon King Twilight's childhood friend Zetsuran sneaks into the castle determined to be reunited with him, but the princess keeps getting in her way. Hades wants to reconcile with his little brother Zeus, and naturally the princess gets mixed up in their business too. Meanwhile, Alazif the grimoire gets a form of hay fever that has unfortunate magical symptoms. If stepping on a butterfly in a primeval forest can drastically change the future, what impact would a princess stealing an ancient duvet ten years in the past have? Plus the princess goes on a fishing trip with the Demon King and Poseidon. What could possibly go right? For teen audiences.

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! For teen audiences.

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! For teen audiences.

When Teddy Demon gets into a fight with Eggplant Seal, the cuteness is un-bear-able. And then Teddy Demon gets lost and encounters the inept rescue party led by the hero Dawner. Meanwhile, Quilladillo's fitness regimen doesn't come without its drawbacks...for the princess. Plus, brothers Poseidon and Hades bond over a common weakness, Midnight finds a new prime suspect to blame for shrinking him, and Great Red Siberian sheds! For teen audiences.

A leaked video from the Demon Castle embarrasses most of its occupants. Agave finally confronts her demons-or rather, the Demon King. Then, when Princess Syalis messes with a magical spinning wheel, it's Poseidon who takes the hit. To rescue the God of the Sea from the effects of the wheel, she must embark on a deep dive into the history of the spell and...her own family?! Plus, Twilight's first love revealed! Sort of. For teen audiences.

The princess gets shrunk to the size of a child, and with dire consequences...instigated by her, naturally. The mystery of why the Ten Guardians only number nine individuals is investigated...with mixed results. The search for a spy in the castle ends in...confusion. But at least the story of Demon Cleric's transformation into a gentler, kinder demon is clarified. Plus, hypnosis, hot pot, and Midnight's hound!

The Monster Bird Egg Association's efforts to poach Cursed Musician prove short-lived as Odile's true motivations are revealed. Meanwhile, Silmoth brings some much-needed experience and dignity back to the Ten Guardians-right up until the princess enters the scene. Then, the residents of the Demon Castle discover the power of partying and Twilight is forced to decide whether a personal invitation to the Wild Avian Hotel is a deadly trap or a fun-filled opportunity. There's also puppies powering up, popularity polls, and pugnacious plants!

Alraune's showdown with the hero's party is brought to an explosive end by a ferocious attack of fangirlism. Poseidon throws a fit when the construction of the gate between the old and new castles is interrupted-again. Demon Cleric is most definitely not at all jealous about the princess hanging out with Hypnos. Twilight and Hades both shrink shamefully after duking it out. And, of course, the princess dies again-but this time Demon Cleric can't bring her back, demanding an impromptu trip to the Underworld and a shocking family reunion!

Another milestone for the Demon Castle is (unintentionally) celebrated with surf, sand, and sun. Quilladillo discovers the hidden costs of fame, while Vampire discovers the incredible power of normalcy. A quest for a free pillow goes awry when a brief trip to the home of the Divinities results in Princess Syalis and Poseidon coming face-to-face with Somnus-the god of sleep. Plus, river races, idol groups, Angel Teddies, part-time jobs, and the Demon Castle residents like you've never seen them before!

The truth behind the missing member of the Ten Guardians and the castle-wide gender swap are simultaneously solved. Bean-based holidays are mixed up and celebrated by Agave and Princess Syalis. Emotions run high when the Demon King and the hero run into each other-and the secret of Twilight's first love is finally revealed (to him). Plus, Teddy Demon transformations, concerning commentary about confidential content, boisterous baking, vexing vacations, and more!

Twilight, Zeus, and the princess must prepare to face a truly harrowing challenge-attending incognito at the Goodreste Royal Academy! However, things quickly go awry when they encounter a group of demon-obsessed students, a mysterious grimoire, and the most dangerous enemy they've ever faced. Then Demon Cleric deals with some non-Syalis feels, Odile's vacation fail ends with him getting eaten by a whale, a princess possessed by a father proves a bother, and more! For teen audiences.

Great Red Siberian has gone missing! Is the Demon King's lackadaisical pet parenting responsible for his sudden disappearance, or does the arrival of a mysterious new enemy have something to do with it? Then once that's dealt with, Princess Syalis discovers Twilight is the worst kind of drunk (sad), Alraune struggles to live up to how a trio of young pups see her (as super rad), and Leo explores how he feels about the Demon Castle's latest body swap (very, very, very bad).

Dreams are coming true at the Demon Castle-though unfortunately only the nightmarish kind! As the Demon Army prepares for a historic meeting of the Demon World's movers and shakers, will they be able to keep the chaos under control?