Once upon a time, there lived a prince in a faraway kingdom named Jung Daehyun. When he was born, he was cursed by the King's exiled concubine to never find true love. Alas, this curse came in a physical form, and Daehyun was cursed with the largest in all of Korea. It was so large that no one could possible do the dooey with him. Thus, Daehyun was cursed to a life of solitude.

But Prince Jung was never one to give up easily. He ventured the whole country, seeking out women of all shapes and sizes in hopes his will find a home where it can fit. His search had been mainly futile, till he heard the rumours of Princess Yoo Ara being the one who could break the spell. Prince Jung immediately travelled to Kingdom Yoo, but in his way, stood Prince Yoo Youngjae, determined not to let his sister lose her ity.