Wait. Before You Write...
Say Yes To Japan is not a sending organization. We do not hire workers or take applications for workers.
If you are in the U.S.—See the organizations on the "jobs list" and "resources" pages on this site. Then apply directly to any that interest you. Or begin within your own denomination. For example, if you are a member of a Southern Baptist church, ask your local church staff to connect you with Southern Baptist missionary agencies that send workers to Japan. Assuming that your own church would recommend you, this positions you for a possible opportunity.
If you are NOT in the U.S.—it will be difficult. The U.S. organizations won't have an easy way to check your credentials or recommendations. If you already have connections inside Japan, start there.
If your question is about something else, we look forward to hearing from you.