On the continent of Girant, the goddess Yulan is the last hope for mankind, who is simply waiting to perish. However, she is now a prisoner in the castle of the Demon King. She is nothing more than a pathetic bitch who has fallen into evil and has no choice but to serve as a boredom relief for Hein.

Today, she is forced to serve him in front of the throne on which he sits. She has a gruesome, never-ending day of training ahead of her......

[Translated From DLsite]