Looker Studio Wards are only allowed in the 23 wards of Tokyo.
https://gyazo.com/41f2d99168e15521d0a78328f7b643bb
I thought to myself, "How is it possible that Osaka City has no supporters?
If Tokyo is divided into wards and other cities are also divided into wards, there is no corresponding area data and a hole will appear as shown here.
https://gyazo.com/9561e4851c50a4e0b3d0e0bb07f97078
Corrected.
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