Lucian Aymer arrives in a corpse-strewn mine before crossing over to another world, one where systems determine a person's fate. Those without systems are deemed useless here. He, however, possesses the King of Systems, capable of devouring all others. As he faces deadly trials and tribulations, he absorbs his enemies' powers through his system. With his companions, he defies the odds and grows stronger as even greater threats emerge.
