On the ruins of Greystone City, Wei Lai, a low-level wreckage handler, lived on the edge of death all day long until a cracked black metal core (war remnant core) accidentally contaminated his blood, completely changing his fate. This remnant core can dismantle all experiences into precise data streams, predict the enemy's movements, and analyze fatal flaws, allowing him to transform from a prey left to be bullied to a "reviewer" who controls the overall situation.
