I'd say that affordable apartments can be found in Tokyo. You fail to look at fine print and sacred ground. Others look at time and distance, while I look at eye candy next door. Haha! I rented a place just to continue a conversation with the girl next door. That cost me because of the pet clause. But seeing that eye candy daily was worth the extra cost. Now, cheap living can be done in Tokyo. It depends on the year and what's going on with the Econ. Osaka is like 50 percent cheaper than Tokyo. But if you had some patience, you could find the same price in Tokyo. Most are in too big of a hurry to find long term housing. I'd say live in a communal share place, get laid by the J-girl wanting to get knocked up for various "fad-related" reasons and while spending little money, search for a good quality, cheap apartment. 20k to 2mil is the Tokyo threshold. Some want to live frugal, some pay 0 yen and live off of company dime, others want a shag pad. The cost is up to each individual, to question how one did save money is absurd. The point is to say that you can find reasonable rent and still live well. Some search better than others, some get their J friends to help, some adventurers like me, will just sniff out cheap high quality living spaces. case in point, my colleague lived in an apartment that had the ugliest exterior, but inside was spectacular. Saw the pictures. We were talking about how to save yen in Japan in general. How many times have you passed up a mansion because of the exterior? I once did that to a crush, but in 2 years I'd see the error of my ways, on the other hand, 5 years later she returned to the state that was a turn off in the first place. I digressed, but spending a third to fifty percent on rent is absurd, unless your company foots the bill. Well ladies and gentlemen, I have warmed up my brain. Cheap can be found, but cheap might mean extra friends like roaches, ants, spiders, and leaches. My rent today is less than my rent when I first came to Japan. I got smart J friends that educated me on the game.