In October I took a 30 day trip to Japan on a 90 day tourist visa, when I left I received a "left" stamp in my passport. In December, I visited again for 14 days on another 90-day tourist visa, but when I left, I did not receive a stamp.
This weekend, I will come back two more weeks. Will it be a problem that I would never have left the country?
If this is a problem, does it help that my previous visa sticker expires on March 21 – two weeks after I leave Japan again.