Unloved by her family, the daughter of a duke, Meryl works at the royal castle to become independent, and as a corporate slave, she suffers from a lack of sleep every day.One day, a small white tiger named "Mofu-chan" appears before Meryl, and she is comforted by its furry fur.Then, the next morning, the handsome second prince, Oscar, arrives and the two of them decide to work together.And it seems that Oscar considers Meryl to be his "soulmate" --?