Ryouga Gouriki" Seo Joo-Heon "King of Robbery

The main protagonist of the series. Joo-Heon nearly died in present while stealing the tombs that were appearing all around the world. He returns 15 years into the past to steal all the tombs before anyone gets them. He is arrogant, selfish, cunning and ruthless, engaging in slaughter and torture and disregarding others when they aren't useful, treating them as pawns.