Why pick the corridor first
Shinsaibashi is a covered street, Umeda is station department stores, Nipponbashi is models, Tenjinbashisuji is a long local arcade. The wrong corridor crosses half the city. Enter only one a day.
Where to enter, which stretch to keep
Enter the arcade at the north end from Shinsaibashi Station, keep the middle, and stop where it meets Dotonbori. Of Umeda's three stores, enter one; the north link is the rain route. Den Den Town and Kuromon are different lanes. On Tenjinbashisuji keep the stretch from the shrine to 3-chome.
How to change the plan in rain
The arcade, Tenjinbashisuji, Namba Parks and Grand Front are covered. Amerikamura and Horie are open-air — cancel them in rain. Do not use rain as a reason to add a second district. Buy, then exit.