So I found this awesome site called Yes Asia. They have quality manga for sale for cheap! So I went ahead and ordered 6 volumes of Nichijou. They arrived today. I opened volume 1 and lo and behold: it's in Chinese. Now, I was pretty pissed right about now. I thought they made a crazy mistake or they pulled a fast one on me. So I went back to the website and looked up 'Nichijou' and guess what? The hierarchy says "Chinese comics."
WHAT THE HECK
The Nichijou cover is still the same as the Japanese cover, so I didn't even consider it a possibility that it wasn't Japanese. I went and browsed some more. Originally I was going to buy some volumes of Mitsudomoe, but I decided to go with Nichijou. Going back, the Mitsudomoe manga are under the label 'Japanese comics.' Should've went with the Mitsudomoe.
I read through the return policy: [link]
And apparently, they don't accept returns of even unopened comics. So I'm stuck with these unreadable Nichijou comics in Chinese...
On the bright side, they arrived pretty quickly and in great condition. So, the lesson here is to make sure you know what language the stuff you're buying is in.