In a world governed by the System, your Class determines your destiny. The strong become celebrity Hunters, bathing in fame and fortune. The weak? They become the background noise of the city. Kai was the latter. An F-Rank "Delivery Courier" with trash stats and zero combat skills. His life consisted of pedaling through New York’s gridlock, delivering packages to the elite who looked at him like dirt. But even that miserable existence was taken away in a heartbeat. A collision with an arrogant B-Rank Hunter from the Golden Lion Guild didn't just wreck Kai’s bicycle—it destroyed his livelihood and trampled on his dignity. Bankrupt and desperate, Kai spent his last dollars on a mysterious, pitch-black bicycle found in the darkest corner of a scrapyard. The junkman warned him: *"It’s cursed. It kills everyone who rides it."* Kai didn't care. He had nothing left to lose. But when a sudden Dungeon Break drag him into an abyss filled with monsters, the "curse" Awakened.