The Jade Emperor (The Sage)

"The thing is... i like all three of you and it would make me sad if i need to kill you all, so... how about you all join my faction ?"

- The king offering Helios, Ymir and Nyx to join his faction after defeating them

Jade Emperor or his most common nickname The King is one of the leader of the Trinity.

He is the one who slay Sun wukong and seal him into Mori Hyoudou when he is still an infant.