Lee Hye-sung

I was living an ordinary life in a small village until the village burned down in one night, and a mysterious young man named Lee Hee-seung appeared and saved me from death. After we escaped, he told me that he had killed my father with his own hands, but before I could hate him, I found a letter from my father that said:

"Don't believe everything you see... Lee Heesung didn't kill me willingly."

Twelve heirs pursued us, each with a different power, because I bear the thirteenth seal, a legendary seal said to be capable of changing the fate of the world.

The closer I got to the truth, the more I discovered that my whole life had been built on lies, that my mother was still alive inside the Black Palace, and that the real king was hiding behind many masks.

As for Lee Heesung... he hides a secret more dangerous than everyone else, and insists on protecting me no matter what it costs him, even if he has to sacrifice his life.

And now our journey to uncover the truth begins, as we are pursued by merciless enemies, and the only question becomes:

Am I the one who will save the kingdom... or the one who will destroy it?