Dungeon Crawler Carl covered the exploits of Carl and Donut as they barely managed to survive the first two levels of the world dungeon that now inhabits Earth. It also revealed the rules by which the dungeon operates and how the crawlers themselves progress and grow within it. It was established that the dungeon crawlers would get to pick their race and class when they reached the third level of the dungeon and that is exactly where this book starts. Yes, that's right, the crawlers will get to pick a race, which means most crawlers will no longer be human after their choice. The choices available to each crawler will differ based on the stats and skills they progressed on levels 1 and 2, which means a lot of specialization will be occurring. Both Carl and Donut have a myriad of choices available to them, but Donut absolutely plans to remain a cat, so her race choice is a foregone conclusion. Because why would a cat ever want to be anything else?