Wang-nan Ja

He is another primary protagonist introduced at the beginning of part II, which initially focuses on him before spreading attention to the other main cast again. On the 20th floor, Wang-nan is initially selfish and willing to resort to trickery to pass the test to the 21st Floor, as he has been stuck on the 20th floor failing the same floor advancement test repeatedly ever since arriving on the 20th floor which results in him falling into financial debt with loan sharks; but later in his last chance test, he starts to display his inner caring side and is shown to be sympathetic and forgiving to people who similarly used trickery against others to survive.

His goal is to become the King of the Tower. He is blond haired, has red protrusions on the back of his head, and has a red ring with the symbol of Zahard (also known as Jahad in other translations) inscribed on it, a ring that Karaka, a FUG slayer wears. He has not displayed any special abilities with shinsu or martial arts, but was able to survive a fatal pierce through his heart in the Workshop battle when Beta tried to stop him from summoning Baam later showing a full recovery, which garnered suspicion and interest from the few people who took notice of this. He is also referred to as Prince of the Red Light district.

Wang-nan wishes his horns would grow.

(Source: Tower of God Wiki)