Got invited to the Shibuya office and was asked go bring some materials I had worked on (they are mostly interested in PowerPoint presentations). Got asked to take notes, so you should have a pen and paper ready. In my case, I used my ipad. It was a strange interview since most of the time was spent them telling me about the company (which I already read at their website) and the interview process. Got asked only one proper interview question and got rushed to observe a class. And then, goodbye. Seems they had already made up their minds after I told them I was only looking for a full-time position, which they highlighted to be a long process. Ended up not getting it (no surprise). I guess seven years of teaching experience was not enough for them.