First, Japanese beauty shops rarely recruit temporary workers from foreigners; (Take out the garbage, except cleaning)

Second, you just went to Japan. Can you communicate with the Japanese without barriers?

Third, Japanese manicure occasions are different from those in China. Unlike the big car shops in China, one or two Japanese girls usually open a small cosmetics shop to get a manicure, which is basically enough to support themselves, and it is not enough to raise a waiter.

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I think you should be a girl, don't worry too much about your life! Girls in Japan have more promiscuity than boys. If the language is good, you can work as a waiter in izakaya or a restaurant. This job is not too tiring, but it is still relatively civilized. You can also apply for a salesperson in a convenience store or a tallyman in a large supermarket. Girls are not too worried about their jobs anyway. If they really can't do it, they will "send paper"! Although it is a bit dangerous, the salary income is still considerable.

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This is all I can know in Japan, and I hope it can help you a little.