Ninja country

There are many people who still wear masks when they go out in Japan.
It is a strange sight to foreigners.

Then, a friend of mine told me a good response.

“Because Japan is a country of Ninjas.”

This appears humorous according to him.
So I decided to use it.

ニンジャの国

日本はまだ外出する時マスク付けてる人が多くて、外国の人から見ると不思議な光景に見えるみたいだけど、知人が面白い切り返しを教えてくれた。

「日本はニンジャの国だからだよ。」

結構ウケがいいみたいなんで、使わせてもらう事にした。

修正内容

There are many people who still wear mask when they go out in Japan.
It looks like a mysterious sight to foreigners.
—>
There are many people who still wear masks when they go out in Japan.
It is a strange sight to foreigners.

It seems well-received according to him.
—> This appears humorous according to him.