Itoe's artstyle is similar to Nihei's artstyle tbh, though it may be me with the worldbuilding
Honestly wondering if the translators dropped this manga even after the anime was finished. The anime has covered around 25~ chapters at this point, yet seeing the official raw it only has 16 chapters where they are currently on the sauna scene.
I am legit unsure if Nihei actually wanted to start the manga much later after the anime aired because looking at the manga, there are more details showing what the anime did not.