So first of all, I adore the original novel, which is quite literally one of the best ones I've ever read. So yeah... this review is kinda biased! I just want more people to enjoy this story!
So far (30 chapters) I enjoy the webcomic adaptation. The art is well done, with the serious/normal parts being well drawn, and the humorous and comedic parts having a gentler, sometimes chibi style that works. Most importantly, the two main characters are drawn very well, and show off their hilarious geeky sides (as no-lifers 'rotten waters' with tons of cameos from pop culture) as well as their adorable/handsome sides.
So yes, I'm biased because I know more of the source material, but the main couple are ADORABLE. The tsundere girl with beastly combat instincts, who's an absolute monster when it comes to combat, Cordelia Chase. And then the coolly calculating with wayyyy too many less-than-legal abilities Jude Bayer. Oh, incase that name confuses people, I'm reading Reaper Scan's, and they put him has 'Yuder Baiel' which frankly annoys me. The world they've entered is a western fantasy, and all the names aren't traditional asian ones. Last names like 'Chase' and 'Hraesvalgr' and so on. So when the novel was original translated, the male MC was 'Jude Bayer', which I think fits much better than 'Yuder Baiel'.
Honestly, that name is the only thing that annoys me with the translations, but I can't tell if it's because I actually think it's a poor translation, or because I'm used to a different name already and can't separate my biases lol.
Anyway, translation aside, the characters are great, the two main characters especially, but also the side characters, who are truly awesome and/or hilarious. Cordelia Papa is hilarious, and I can't wait for her older sister to be introduced and her interactions with Jude's brother (many many chapters on, ngl). The plot is very epic, with the fact that the main characters have ridiculous knowledge being equaled out by the fact that they're rushing the plot and fighting against an upcoming apocalypse to make things balanced.
Also, for those who care, please note that there is no harem, and the romance is utterly fantastic. Please check this one out!