Bae Joohyun has it all: beauty, money, and power. She's the most powerful being of The Quadlans and she's soon to rise to the imperial throne. Son Seungwan has nothing: she lives in the poorest level of The Ruins, and she's part of a terrorist group called The Monolith. There shouldn't be any way for them to cross paths, but destiny always has other plans. Will the princess and the rebel fulfill their fate to save the kingdom, or will they die trying?