This description is taken from Google Translate so I dunno how accurate it is!
Meryl, a duke's daughter who is unloved by her family and works at the royal castle to become independent, lives a life of constant sleep deprivation as a workaholic.
One day, a small white tiger named "Mofu-chan" appears before Meryl, and she finds solace in its fluffy cuteness.
The next morning, the handsome Second Prince Oscar arrives, and the two begin working together.
Moreover, Oscar seems to think that Meryl is his "destined partner"—?