To start a business in Japan, choose a structure (e.g., KK or GK), secure an office address, prepare documents, and register with the Legal Affairs Bureau. Obtain necessary permits, register for taxes, and open a local bank account. Foreigners may need a business visa. Hiring a local consultant or legal expert can streamline the process. https://www.tradeflockasia.com/how-to-start-a-business-in-japan/