By her mere existence, Princess "Derpy" De Raptura ushers in a new era in Equestria's history. The first commoner to ascend the throne, the first new monarch of Equestria for more than two thousand years, Derpy faces the unenviable task of bending a fractious and ambitious political establishment to her will when her experience amounts to little more than planning the best delivery route each day.

Yet it seems that Derpy must face the true price her new-found power demands. To raise the sun she must love the whole world, but to give that love she must endure a burden far greater than she could possibly imagine.