Multiclassing Is The Best!

A classic video game Isekai, but with a twist.

Ren's obsession with multiclassing in Monsters and Mazes has driven his friends away, tired of his constant rule-bending. When the mysterious Maze Master offers him a chance to beta test the latest update, Ren eagerly accepts, only to find himself trapped inside the game world. His love for multiclassing backfires, leaving him with a crippling experience penalty that hinders his progress. Now, without his friends and burdened by his own reckless choices, Ren must use his wits to survive in a realm where every trick he once exploited now works against him. Can he outsmart a world where the game itself fights back?