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During AnimeJapan 2021 this Sleepy Princess anime key visual was released. Pic credit: Studio Doga Kobo

“The story that began with the captive princess and the Demon Kings turned into the scariest princess and the gentle and entertaining friends of the Demon Castle!” said Princess Sya voice actress Inori Minase. “It was a project that taught me the fun of interacting with each other and the depths of gag acting. I’m still haven’t had enough play and sleep, so I’m hoping for another opportunity!”

The first season of the anime was produced by Japanese animation studio Doga Kobo, which also produced the Ikebukuro West Gate Park anime in the same 2020 time frame. The studio is best known for adapting manga slice-of-life comedies like Asteroid in Love, How Heavy Are The Dumbbells You Lift?, and New Game!


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So, arguably, they’re the perfect fit for making Sleep Princess Season 2. Most of the main staff has worked together in the past for studio Doga Kobo.

You are watching: Sleepy princess in the demon castle season 2

For the first season, the anime project was helmed by director Mitsue Yamazaki, who is best known for directing How Heavy Are The Dumbbells You Lift?. His action chops come from being an episode director on the Bleach anime series (the Bleach Season 17 release date is set for 2021).

Writer Yoshiko Nakamura (Re:Zero Season 2) wrote the series composition. Artist Ai Kikuchi (How Heavy Are The Dumbbells You Lift?, New Game!) was the character designer. Composer Yukari Hashimoto (How Heavy Are The Dumbbells You Lift?, March Comes In Like A Lion) created the series’ music.

The Sleepy Princess in the Demon Castle Season 2 OP (opening) and ED (ending) theme song music have not yet been announced.

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For the first season, the Sleepy Princess OP was “Sleep! A Good Night’s Sleep! Syalist Life (Kaimin! Anmin! Syalist Seikatsu)” as performed by Inori Minase, the Japanese voice actress for Princess Sya.

In a November 2020 interview, the director noted that the OP alone has over 1,800 drawings for the animation. Considering that entire episodes will sometimes be in the 3,000 to 4,000 range that’s pretty crazy!

(On a quirky side note, Minase also voices the demon maid Rem in Re:Zero. The Demon Cat Stamp from Sleepy Princess Episode 2 was voiced by Satomi Arai, who voices Beatrice from Re:Zero.)