Once a winner of the middleweight challenger’s decider bout showdown, Junseo Kang is now a retired fighter struggling to overcome his worst nightmare: zombies. Every time fear catches him, he sees others as zombies. Now with the new opportunity rising, he sees his way out: join the game Ranker, win the prize money, and overcome his fragile mental.

In an all-or-nothing showdown, a total of 100 characters must fight for their players and eliminate each other to get to the top 5 ranks to win the accumulated prize money of 20 million dollars.