When young Princess Syalis is kidnapped and imprisoned by the Demon King, she's rather indifferent about her situation. But she quickly comes to a terrible realisation—she can't sleep soundly in such an uncomfortable bed! She soon escapes her cell and sets off in search of ways to improve her sleep quality, leaving the castle's inhabitants, and even the Demon King himself, scrambling to keep the unruly princess out of trouble during her chaotic adventures.
EP 1AvailableNow playingPrincess Syalis is abducted from her home of the Nation of Goodereste by Twilight the Demon King. Despite the horrors lurking in the Demon Castle, all Princess Syalis wants is a good night’s sleep.
EP 2AvailableAs Dawner the Hero faces perilous obstacles to rescue Princess Syalis, the princess continues to find creative ways to sleep more comfortably at the Demon Castle.
EP 3AvailablePrincess Syalis is on the loose again meddling with forbidden magical items and causing total mayhem for the Demon Castle.
EP 4AvailableFed up with her circumstances at the Demon Castle, Princess Syalis goes to great lengths to add luxuries to her castle prison.
EP 5AvailableThe female unit, long deployed out in the field, has returned to the Demon Castle to get their first taste of Princess Syalis.
EP 6AvailableDawner the Hero is having more trouble than expected on his journey to the Demon Castle, so the demon higher ups decide to take some action.
EP 7AvailablePrincess Syalis wakes to find herself in a completely different castle! What happened and how will she return to the Demon Castle?
EP 8AvailableBack at the Demon Castle, Princess Syalis interrupts an important meeting to share about her haunted dreams.
EP 9AvailableIt’s time for Princess Syalis to start acting like a proper hostage, so the demon king issues a decree to help change that.
EP 10AvailablePrinces Syalis is determined to get her hands on the latest and greatest sleep product, but it’s only available in the Human Realm.
EP 11AvailablePrincess Syalis feels tired no matter how much sleep she gets, and her troubling dreams aren’t helping.
EP 12AvailableDespite living as a captive in the Demon Realm, the princess writes a letter to Santa. The letter’s contents shock the demon king.
Princess Syalis (voice)
Demon Cleric (voice)
Demon King Tasogare (voice)
The Hero Akatsuki (voice)
Majiro the Hedgehog (voice)
Frankenzombie (voice) / Ghost Wrapping Paper (voice)
Caesar Magician (voice)
Goblin Serf (voice)
Red Siberian (voice)
Harpy (voice)
Aladdif (voice)
Poseidon (voice)
