My (quick) background: I graduated from a regional target school and I speak fluent Japanese and German (I went to high school in Germany). I have been working in the Valuations & Business Modeling division of a Big 4 firm in Tokyo for about one year.
Feel free to ask questions about the type of work we do, how relatable it is to IB, exit opps, or any other Japan specific questions. I have good connections with people in my office and other offices abroad, so I would be able to answer questions about positions above the Consultant level (even if I dont have personal experience).
Hope this will be helpful to some of you!