Is the ad campaign already started in japan?
yes, check the pic in the last post. Also , there was a massive campaign 2 weeks ago in Akihabara
How long does the Japan ad campaign is going to last?
Also, just to mention that MONA was the only cryptocurrnecy to rise at the last 2 weeks, it shows a great confident from it's supporters, I think that there is a good chance that the next exchange to add MONA is Poloniex, which is going to take the price even further.