In an era where everyone can awaken a class, Lin Han awakens the world's only hidden class—【Grim Reaper】.
With the ability to capture wandering souls and build an army of the undead, he also binds to the 【Universal Fusion System】, allowing him to conquer dungeons, explore secret realms, and outwit powerful enemies.
Determined to uncover the truth behind his father's disappearance and revive the Caesar Guild, Lin Han embarks on a perilous journey. Rising through one trial after another, he steadily advances toward the pinnacle of power.