To apply for a Business Manager visa, an employee or director of the company must first apply for a Certificate of Eligibility(COE) with the immigration bureau. The transaction is completed by paying for the shares to be transferred, so the transfer contract must clearly state the number of shares to be transferred, the total amount, the date, and the method of payment. The easiest way to obtain COE approval is to make the payment by transferring money to a shareholder's bank account in Japan. This is because immigration bureaus will not recognize an investment in Japan as having been made without proof of actual payment, not just an agreement. Although it says, "I aim to help manage the business," the activity for this visa must be to operate the company, not to help manage it. If the record of the company's sales, profits, and number of employees is good enough, it may be permitted only by managing a team of the company. You can find the required documents on the Immigration Services Agency website https://www.moj.go.jp/isa/applications/status/businessmanager.html?hl=en
