Vincenzo did you have to take the Japanese driving test twice?
No, I got lucky. The company I work for set me up with someone from Tokyo that knew the ins and outs of getting the license. He walked me through the course and I was able to pass on the first try, but he pretty well expected me to fail at least once.
I was looking online at some of the procedures and it seems to be a real milestone because of the difficulty. This one guy tells you what to do to pass on the first try: