It explains a lot more than the anime, but…there are some inconsistencies. It mentioned in the first volume that slimes generally don’t evolve because they don’t get enough to eat. Ryoma focused on evolving specializations through experiments, and came up with acid, poison, sticky, scavenger, and cleaner varieties…which the duke had never seen. In this volume, the gods reiterate that slimes never get the chan s to evolve, and Ryoma has accomplished something that even their creator failed to do. But..the guildmaster clearly recognized the different varieties, and noted that adventurers who take slimes too lightly do not survive. And in the bonus story, Eliaria is asking for advice on her soon-to-evolve cleaner slime, saying that “i don’t think my father knows much about them either” as if they are an established variety they are at least aware of.
Also, the stats show that normal humans have between 1-5000 magic points. But no one seemed flabbergasted by his 198000, and Eliaria’s 200k also didn’t seem like a big deal, just a bit higher than normal. A kid with 40x more magic is insane. The explanation of his power was a bit odd too. In theory, having so much should mean a user has difficulty with fine control of their power, but here it seemed to show that after constantly using it, his spell was stronger without using more magic. I expected them to say that previously he exploded larger areas than intended, then with practice learned to focus his power on only the part he wanted to destroy.