The chain starts with finding a flat
No visa, no flat; no address, no bank account. The chain starts with finding a flat. Apartment listings for Tokyo are scattered across a handful of Japanese real-estate sites, most of them built for renting from inside the country, not for comparing options from abroad.
A single site does not show what is actually around a room, or how it compares with the rest of the neighbourhood. That comparison gets pieced together by hand, tab by tab.

