大坂なおみ - Wikipedia　 : 多重国籍 - Wikipedia　
どうなる？　二重国籍「大坂なおみ」の東京五輪（デイリー新潮） - Yahoo!ニュース

She doesn't look like Japanese nor speak Japanese well. What is nationality?

If she chooses US citizenship, do you feel you are betrayed?

Should Japan approve  multiple citizenship?

Austrarian can have multiple citizenship. What do you think?