This is Udemy for AWS certification preparation. The price of the course is subject to change, but I think it's cheap if it's under 2,500 yen.

https://www.udemy.com/courses/search/?src=ukw&q=AWS+%E6%97%A5%E6%9C%AC%E8%AA%9E

I'm not sure if this is a good idea or not, but I'd like to see a free version of the ZOOM for companies that are looking for a free version of ZOOM. Of course, there should be a free version and a paid version for companies that want to use voice recognition and automatic translation for business meetings such as trade negotiations via ZOOM.