So much potential! I seriously hope the author maintains the current feeling of the manga and doesn't feel the need to deviate to much in the future.

The feeling of the manga reminds me of TWGOK before it began deepening the story-line with the whole Goddesses ordeal. Then obviously the plot reminds me of GTO but you could probably tell that from the synopsis. It's funny and nicely paced so far. The characters are not very original (the main character has some very distinctive points that begin to make him an interestingly original character, but in the beginning he kind of looked like the stereotypical portrayal of otakus in light-hearted gag mangas) but are surprisingly likable. It mixes well jokes with some simple but important life lessons based on the personalities and lifestyles of some kids he helps throughout the way. I especially liked a line from chapter 5 or 6 that went something like "Even if I'm expelled, I won't die. But if I lose my reason for living, isn't that the same as being dead?". It kind of hit me nicely even though it was so simple.

The art is good, even if the designs of the characters give off a little bit of an old school feel, which is good in itself since it gives the art its own flavor, I guess. So summing things up: read it! It's simple, light-hearted, comedic fun which by chapter 7 already gives off so much potential. I somehow feel that if the author doesn't mess up, this'll become fairly popular in 1.5 to 2 years if not before that even.

surprisingly very good, makes the main character seem smart instead of just knowing everything (even though it sorta implies he can DO everything). Very enjoyable main chracter in general.
similar to onizuka, except otaku saves the day rather than gangster super brute forceness.

otaku teacher is an original idea (as far as i know at least)
funny, comedy-violence, (minor) fanservice
just what i like in a comedy
bonus points for pretend /b/ style life ruining

i'm sure it has Onizuka's references, a bit similar with Hammer Session since the main chara a genius and he's a teacher after all mmm...
well, for the first chapter it's quite interesting, has some originality with the teacher being an otaku but it seems that the plot will be once again similar to Onizuka and Hammer Session mmm...
for now i give 10 so people will try to read it, though i don't really care about rating, just random mmm...