Synopsis

Anthrad, a loyal demon, is abandoned by his master and killed by a human, who in turn promises revenge, obtaining a piece of Anthrad's heart. Meanwhile, the protagonist, Kang Jinhyuk's mind realm begins collapsing, which turns out to be due to a collision with another player's mind realm. This forces Kang Jinhyuk and the other player into a synchronized technique battle against remaining demonic forces, resulting in a significant power up and elimination of a powerful foe.