A drowsy human princess roams the demon's castle where she's held prisoner, trying to find a comfortable place to get a good night's sleep.
Where to Watch Season 1
12 Episodes
Sleepless Princess of the Castle
E1
Sleepless Princess of the CastlePrincess 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.
The Princess and Furious Fluff
E2
The Princess and Furious FluffAs 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.
The Princess and Forbidden Knowledge
E3
The Princess and Forbidden KnowledgePrincess Syalis is on the loose again meddling with forbidden magical items and causing total mayhem for the Demon Castle.
The Princess, Destruction, and a Short Journey
E4
The Princess, Destruction, and a Short JourneyFed up with her circumstances at the Demon Castle, Princess Syalis goes to great lengths to add luxuries to her castle prison.
The Princess and Female Warriors
E5
The Princess and Female WarriorsThe female unit, long deployed out in the field, has returned to the Demon Castle to get their first taste of Princess Syalis.
The Princess’ Unwavering Choice
E6
The Princess’ Unwavering ChoiceDawner 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.
Even More Sleepless Princess of the Castle
E7
Even More Sleepless Princess of the CastlePrincess Syalis wakes to find herself in a completely different castle! What happened and how will she return to the Demon Castle?
The Princess and the Frightful Demon Nightmare
E8
The Princess and the Frightful Demon NightmareBack at the Demon Castle, Princess Syalis interrupts an important meeting to share about her haunted dreams.
The Princess and Hostage Training Week
E9
The Princess and Hostage Training WeekIt’s time for Princess Syalis to start acting like a proper hostage, so the demon king issues a decree to help change that.
The Princess in Endopolis
E10
The Princess in EndopolisPrinces Syalis is determined to get her hands on the latest and greatest sleep product, but it’s only available in the Human Realm.
The Princess and Troubling Dreams
E11
The Princess and Troubling DreamsPrincess Syalis feels tired no matter how much sleep she gets, and her troubling dreams aren’t helping.
Sleeping Princess of the Demon Castle
E12
Sleeping Princess of the Demon CastleDespite living as a captive in the Demon Realm, the princess writes a letter to Santa. The letter’s contents shock the demon king.
Cast of Season 1
Inori MinasePrincess Syalis (voice)
Kaito IshikawaDemon Cleric (voice)
Yoshitsugu MatsuokaDemon King Tasogare (voice)
Hiro ShimonoThe Hero Akatsuki (voice)
Rikiya KoyamaMajiro the Hedgehog (voice)
Kouichi SoumaFrankenzombie (voice) / Ghost Wrapping Paper (voice)
Junichi SuwabeCaesar Magician (voice)
Shinya TakahashiGoblin Serf (voice)
Chikahiro KobayashiRed Siberian (voice)
Sayaka OharaHarpy (voice)
Ayane SakuraAladdif (voice)
Takeo OtsukaPoseidon (voice)
Masashi YamaneMinotauro (voice)
Takaya KurodaFlame Poison Dragon (voice)
Shin-ichiro MikiHypnos (voice)
Kisho TaniyamaHades (voice)
Mitsue YamasakiDirector
Yoshiko NakamuraWriter
Daijiro MoritaProducer
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