Morning is only Kuromon
From Nipponbashi follow Kuromon-suji, about 5 minutes. Eat before noon. Most stalls shut in the afternoon — closing follows that day's notice. Den Den Town is another lane off the same station. Do not turn it into a second theme.
Afternoon stays under the arcade
Enter at the north end of the arcade, by Daimaru, from Shinsaibashi Station. Keep the middle stretch. Stop when it meets Dotonbori. Rain does not mean Umeda — this stretch is covered. Amerikamura is open-air; skip it in rain.
Ebisubashi only at night
The signs sit on both sides of Ebisubashi. One photo, then clear the bridge. Hozenji Yokocho is the dark lane of the same night. Do not ride back to Umeda. Last trains are around midnight — trust the station.