When those souls of the Ten Highest Angels fought for the position of the real Kim Hajun, the real Kim Hajun was carried by the God of Time in both hands.
The God of Time opened a portal to his realm and then he entered it while carrying Kim Hajun in both hands.
The God of Time placed Kim Hajun on the ground and then he draw some magic circles around Kim Hajun.
He draws those magic circles using his blood and tears.
Those magic circles formed a formula magic circle that radiated golden yellow light.
The formula magic circle shrunk and then emitted an extremely bright golden yellow light.
The extremely bright golden yellow light ignored the dragon knight set that Kim Hajun was wearing and seeped into Kim Hajun's body and made several golden yellow carvings with strange symbols that looks like a bunch of numbers assembled into a strand on Kim Hajun's body.
Gradually, those carvings on Kim Hajun's body became invisible.