Disciple of the Three Kings

I was a player on the verge of becoming a High Ranker.
But then…“There is… nothing left.”
When only emptiness remained, a system message I thought I’d lost echoed in my mind.
[You have been chosen as the Vessel of Chaos.]
[Do you accept?]
[Warning: Depending on your choice, the world may face destruction.] Destruction?
There was only one thing I could do.
The fading ember of vengeance.
“Ha… haa…”
I resolved to stoke that ember into a blaze.
“I… accept…”
When my consciousness faded and returned, what I saw was—
“Who… are you people?”
The Master of the Demonic Sect, the Martial King.
The sole ruler of Einhart, the Sword King.
The God-Slayer who killed a deity and usurped their divinity, the Demon King.The three sovereigns of the invaded worlds, the Three Kings.