While living there sounds nice at first, Japan really isn't a place you'd want to live. Compared to the United States, Japan is over 30 places lower on the UN's world happiness rating and deals with many cultural problems such as an extremely toxic work culture, extreme population density, lack of recognization of gay marriage and more. I've heard Japan described before as a place to visit and retire but not a place to live and I feel like it is a fitting description.