Season 1

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  7.4/1062 votes

  Sleepless Princess of the Castle

  Season 1 Episode 1 - Aired 10/6/2020

  Princess 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.

  Director: Mitsue Yamasaki

  Writer: Yoshiko Nakamura

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  7.5/1050 votes

  The Princess and Furious Fluff

  Season 1 Episode 2 - Aired 10/13/2020

  As 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.

  Director: Unknown

  Writer: Unknown

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  7.5/1049 votes

  The Princess and Forbidden Knowledge

  Season 1 Episode 3 - Aired 10/20/2020

  Princess Syalis is on the loose again meddling with forbidden magical items and causing total mayhem for the Demon Castle.

  Director: Unknown

  Writer: Unknown

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  7.4/1047 votes

  The Princess, Destruction, and a Short Journey

  Season 1 Episode 4 - Aired 10/27/2020

  Fed up with her circumstances at the Demon Castle, Princess Syalis goes to great lengths to add luxuries to her castle prison.

  Director: Unknown

  Writer: Unknown

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  7.5/1045 votes

  The Princess and Female Warriors

  Season 1 Episode 5 - Aired 11/3/2020

  The female unit, long deployed out in the field, has returned to the Demon Castle to get their first taste of Princess Syalis.

  Director: Unknown

  Writer: Unknown

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  7.8/1046 votes

  The Princess’ Unwavering Choice

  Season 1 Episode 6 - Aired 11/10/2020

  Dawner 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.

  Director: Unknown

  Writer: Unknown

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  8.3/1050 votes

  Even More Sleepless Princess of the Castle

  Season 1 Episode 7 - Aired 11/17/2020

  Princess Syalis wakes to find herself in a completely different castle! What happened and how will she return to the Demon Castle?

  Director: Yoshino Shirahata

  Writer: Unknown

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  7.8/1043 votes

  The Princess and the Frightful Demon Nightmare

  Season 1 Episode 8 - Aired 11/24/2020

  Back at the Demon Castle, Princess Syalis interrupts an important meeting to share about her haunted dreams.

  Director: Unknown

  Writer: Unknown

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  8.3/1050 votes

  The Princess and Hostage Training Week

  Season 1 Episode 9 - Aired 12/1/2020

  It’s time for Princess Syalis to start acting like a proper hostage, so the demon king issues a decree to help change that.

  Director: Unknown

  Writer: Unknown

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  7.9/1042 votes

  The Princess in Endopolis

  Season 1 Episode 10 - Aired 12/8/2020

  Princes Syalis is determined to get her hands on the latest and greatest sleep product, but it’s only available in the Human Realm.

  Director: Unknown

  Writer: Unknown

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  7.5/1044 votes

  The Princess and Troubling Dreams

  Season 1 Episode 11 - Aired 12/15/2020

  Princess Syalis feels tired no matter how much sleep she gets, and her troubling dreams aren’t helping.

  Director: Yasufumi Soejima

  Writer: Unknown

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  8.0/1043 votes

  Sleeping Princess of the Demon Castle

  Season 1 Episode 12 - Aired 12/22/2020

  Despite living as a captive in the Demon Realm, the princess writes a letter to Santa. The letter’s contents shock the demon king.

  Director: Mitsue Yamasaki, Sumie Noro

  Writer: Yoshiko Nakamura