Things were starting to finally go well for Michael Ark when the world as he knew it ended. He had just gotten a promotion at his job, and he had also moved into a brand-new apartment in a nice part of the city, so Earth's integration into the Multiversal System came as terrible timing.

The planet was terraformed, the technology-grid stopped working, and dungeons filled with monsters and treasures rose from the ground, spawned out of thin air. It was inside one of said dangerous dungeons where Michael found himself trapped at the very beginning of this apocalypse. Well, it was called a 'tutorial', but the monsters that were trying to rip him in half certainly didn't seem like they were going easy on him.

And to make things worse, he just so happened to have the unlucky fortune of rolling a non-combatant [Healer] Class while surrounded by deadly monsters. However, he doesn't let that deter him. He fights to the brink of death again and again and again, until he eventually gets the rare Class of a [Battle Healer].

But even though Michael's old life as he knew it ended on the day of the apocalypse, he finds himself finally feeling alive for the first time ever. So in this new life of endless opportunities, Michael will not just fight to survive like everyone else— he will fight with a smile on his face and thrive.