To kill the king

The king's game was announced in Heilig kingdom.

For everyone who will succeed to kill him will claim his throne.

But for some reason,The king seems to be immortal.

Questions still resides on everyone's mind,what is the motive of the king on this killing game?How strong is the king to create such game that will threaten his own life?

Furthermore, this world of sorcerers and knights keeps a deep dark secret about the war amongst kingdoms that will change everyone's positive perception about the king.

This is a start of Renz and his companions' adventure on howTO KILL THE KING.