If you want to start activities with massage therapy, not just Japkasai, the biggest bottleneck is probably the problem of accident compensation. If the client gets sick, the amount of damages often amounts to tens of millions of yen. No one will take the risk of tens of millions of yen to make a profit of tens of thousands of yen. It's a lucrative business model, but it's too dangerous if you don't think about what happens in the unlikely event of an accident. There is also the danger that you will end up swinging on a stick for the rest of your life because of a momentary event. Therefore, it is necessary to obtain a qualification from an industry group and receive accident compensation support.