I’ve just started work but I’m having trouble making ends meet because I’m not being paid. When I asked my employer, they told me that the first month of employment is a probationary period and most of it is training, so I will not be paid.

2022/5/17

During your probationary period, you should still be paid for your work. Even if you are receiving training during your working hours, you should still be paid for it as the training is part of your job that you are required to receive by the company. Additionally, if the training is held after working hours but you are required by the company to attend, you should be entitled to overtime pay.
Non-payment of wages is a violation of the Labour Standards Act. You can report the violation to your local Labour Standards Inspection Office (Labour Standards Inspection Office Foreign Language Consultation Dial: https://www.startup-roudou.mhlw.go.jp/foreigner.html), or consult with a labour union or the Labour Lawyers Association of Japan.