Tokyo is enormous and almost flat, threaded with rivers and old gardens. These are the twelve places its runners actually use, with the rules each one asks you to keep.
A plan that knows what today is for
Tell it how much you run, how many days you have and which race you are aiming at. Every day it gives you one thing to do, and it adapts when life gets in the way: a lighter week when you are tired, short runs when you travel, walk-run when something hurts. It stays on this device. No account.