Cheonnyeonbangsa 

A child was abandoned in a forest infested with monsters and ghosts. Woon Sowol was adopted by the five masters and learned the best magical techniques. Although the five masters are godly beings, now their inner balance is on the verge of being broken down. Woon Sowol takes revenge on behalf of his masters, and goes to the world to become a god. In the end, will Sowol be able to get out of the forest of beasts? (Source: KakaoPage, translated)