This manga has another version(I guess?) on mangarock with different drawings and that ones' pace is faster than this, so that one covers more in 6 chapters. And that version is not completed yet. I personally think the other ones' art was more entertaining and their characters were more funny than this one, so you can check that one out as well. It is called Eiyuu Kyoushitsu and it's on mangarock(it is not on mangago, or maybe I couldn't find it here), and it is getting updated there.
This manga has another version(I guess?) on mangarock with different drawings and that ones' pace is faster than this, so that one covers more in 6 chapters. And that version is not completed yet. I personally think the other ones' art was more entertaining and their characters were more funny than this one, so you can check that one out as well. It is called Eiyuu Kyoushitsu and it's on mangarock(it is not on mangago, or maybe I couldn't find it here), and it is getting updated there.