That's what was initially the plan. I was actually only going to stay for a month because the high cost of airbnb would dictate that. But then browsing Gaijinpot, I could get an apartment for 2-3 months for the same price, especially since I don't mind where I live.
Here's an example:
https://apartments.gaijinpot.com/en/rent/view/155684
Your average apartment right? No key money, no deposit, furnished, etc etc.
Similar area (ward?), of course more expensive and more spacious, but truth be told I don't need much space. If gaijinpot works for short term foreigners, then i'd rather take cramped for 3 months than spacious for one.
That's why I posted here. Any and all advice is welcome. It'll be good to be back in Japan again though.