Echoes of the Demon God

The Koryao Group controls taboo power, the dangerous place is full of dangers, and S-class secrets hide murderous intent. He is an inconspicuous newcomer in the group, but he can always make a comeback in desperate situations and solve all dead ends. No one knows his trump card, no one sees through his disguise. He wanders in the dark game and stirs up all the forces. Under his seemingly ordinary body, he hides the ultimate secret that subverts the world. When the fog cleared, everyone was shocked to realize that his existence was the greatest terror!