Eric was as shocked as everyone else when the apocalypse struck, but unlike his mother's movie, there were no chosen heroes destined to fight the beast hordes now overrunning the planet. Just people trying desperately to survive. Yet there was a glimmer of hope that humanity could hold on to. A chosen few really could level up in this brave new world, and embrace magic, adventure, and the potential for limitless power!

Nathaniel's bus ride was supposed to be just another boring commute. Wrong. Now, he, 23 fellow passengers, and a corgi named Biscuit, are stuck in a "Hell Difficulty" Tutorial, battling monsters and leveling up to survive. Easy difficulty, anyone can handle. Normal difficulty, you've got to put up a fight to get by. Hard difficulty is where only the tough ones last. And Hell? That's where you have to be a bit out of your mind! With his terrifying talent for mana manipulation, Nathaniel decides to invest every stat point into mana.

Jay Luckrun has many interests: street dancing, anime, action movies, comedy, and dashing across rooftops to the point where his bullies nicknamed him Rooftop Weirdo. After struggling to confront his untouchable high school crush at her seventeenth birthday party, Jay adds another interest to his list—Dungeon Crawling in the face of the apocalypse. Jay meets a divine creature who chooses him to become a Champion. Someone with a leveling System, stats, skills, access to other dimensions containing dungeons filled with supernatural loot, and magical powers that’ll alter reality as they know it.

As humanity is taking its final breath, facing extinction from a myriad of monsters, the last three people on earth are creating a final chance for the hero to go back in time and stop the apocalypse. However, before the hero can enter the chronomancer portal to the past, she and the portal's creator are both killed, leaving only the weak assistant to carry on their dream of saving the world. Will Nick be able to right the wrongs done to him, and prepare the hero for the world to come?

Daxas has established his dungeon in the Proving Grounds and incorporated two more into his sphere of influence. But his expansion and rule-breaking doesn't end there. His successes have been impressive, but thus far, he has been competing against the other minnows in the Proving Grounds. Other, grander forces, have taken notice and the interfering Divine Lords continue in their campaign to see Daxas destroyed. Daxas will have to think bigger, fighter harder, and cheat in ever more inventive ways if he and his growing pool of desirable disciples are to emerge victorious.