Breaking the system one level up at a time! When THE SYSTEM takes over Earth, five retail employees find themselves trapped inside the fifth floor of a dungeon. Jun, instead of taking one of the regular starting classes, instead decides to go for broke: starting to multiclass from the ground up. To get himself and his friends out of the dungeon he's got to rely on his ingenuity, his best friend Jose and even the military training he'd rather forget.This series involves violence, cursing, comedy, action, level ups and a whole lot of junk food from the employee break room.