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Sleepy Princess in the Demon Castle

Sleepy Princess in the Demon Castle

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In a world where humans and demons coexist, Demon Lord Tasogare holds the human empire's princess, Aurora Suya Rhys Kaymin, hostage. He demands humans to give him absolute rule on the world, but humanity refuses to concede without a fight and sends hero Yuusha Akatsuki to save the captive. Meanwhile, although unharmed, Suya Rhys spends her time locked up in the demon castle, often feeling lethargic. Even so, she has trouble sleeping due to poor hospitality. The princess then begins her amusing adventures as she tries to make herself comfortable and finally get some sleep.

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-

Author

Shounen Sunday / Kagiji Kumanomata / 熊之股鍵次

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Updated On

August 23rd 2025

Type

Manga

Status

Ongoing

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Genres

Supernatural Shounen Fantasy Comedy Magical Demons Manga slice_of_life

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Supernatural Shounen Fantasy Comedy Magical Demons Manga slice_of_life

In a world where humans and demons coexist, Demon Lord Tasogare holds the human empire's princess, Aurora Suya Rhys Kaymin, hostage. He demands humans to give him absolute rule on the world, but humanity refuses to concede without a fight and sends hero Yuusha Akatsuki to save the captive. Meanwhile, although unharmed, Suya Rhys spends her time locked up in the demon castle, often feeling lethargic. Even so, she has trouble sleeping due to poor hospitality. The princess then begins her amusing adventures as she tries to make herself comfortable and finally get some sleep.

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August 21st 2025

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