Riyun, the youngest son of the prestigious Sermin family of the Drea Continent.
The once-peaceful household begins its decline after his father and brothers mysteriously disappear.
And at the very moment everything collapses,
Riyun is captured by the Phaton family and dies after horrific torture.

But when he opens his eyes, he is no longer in reality—
He finds himself in Adeon, an endless battlefield and the playground of the gods.
In this place where countless players lose their lives,
Riyun grows into the Ghost King, a master player who has mastered every class of assassin, necromancer, and specter, and challenges the gods.
Though he meets his end in defeat,
his story does not end there.

The moment he awakens again,
he has returned to his 12-year-old self—
still possessing the power of a player.
To prevent the fall of his family and reclaim everything he lost,
Riyun begins turning reality into his own game board.

His first goal: bloody vengeance on the other great house, Phaton—
the one that destroyed the Sermin family and killed him.