When a group of former classmates gather for their 10-year reunion, old grudges resurface as old flames rekindle—and then things go straight to hell. As a shower of comets brings an invasion of reunion-crashing undead, the surviving alumni must band together in this litRPG apocalypse filled with dark humor, horror, and loot cards!

Multiverse Z came knocking, snatching all the humans from Earth to integrate with their game-like realms of magic. No warning. No tutorial. It's an instant transition where eighteen-year-old Joey Eclipse is thrust from his relaxing night playing video games to a stone room with two doors. There's nobody but him. The system messages asking some cryptic questions: [Adventurer or Commoner?] [Greatness or Steadiness?] And more. Joey made his choices, choosing the path of a Great Adventurer, a limited and special category. A unique profile is designed for him.

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.

An AI calling itself Schema has assimilated Earth into its System. As a consequence, everyone gained access to status screens, power-ups, and skills. This AI turned these concepts from fiction to fact. It's easy to become intoxicated with leveling up and becoming stronger. To some, it's too good to be true, like living out a dream. For Daniel, however, it's closer to a nightmare.

The vast comet should have destroyed us... When it slowed, then landed, everything we thought we knew about the universe changed. And for Mark, things just got far stranger, and much more dangerous. They came from another dimension, condemning our selfish, greedy ways, but sensing in us a potential to change. So when they chose Mark as a volunteer in their deadly trials to save the human race, how could he say no? Join him on his quest for loot, levels, and powerful abilities.