Celestia is tired of being a ruler. She decides to go on vacation, leaving Luna in charge of... pretty much everything. Celestia expects her sister to take care of such things like raising the sun every morning or receiving letters from Twilight.

However, Luna is not happy about her new duties. She never really wanted to be the ruler of Equestria. To make the matter worse, Luna is actually clueless what to do... Will somepony help her? Will she find the way to make Celestia return to Canterlot?