Hi! Kirk here. I actually found this information in Japanese. Sometimes, I guess you have to be more-or-less fluent in Japanese in order to find out where you can study Japanese in order to become fluent. :(

Here's a ChatGPT translation of part of the text of the Japanese article:

--- start translation ---
Application Period: October 2, 2024 (Wednesday) until the class reaches capacity
Eligibility: Foreign residents aged 15 and older living in Kumamoto Prefecture
Cost: ¥4,800 (tax included, bank transfer fee not included) — one-time payment for ¥800 per month
Requirements:

  • Internet access (non-metered connection recommended)
  • A PC, smartphone, or tablet with Zoom installed
  • Webcam, microphone, and headphones (built-in ones are acceptable)
    --- end translation ---
    https://japan.cnet.com/release/31034660/

I'll end with the links to the English-language form and all of the forms in other language.

In this case again (sigh) the English form has no links to the Japanese form or to forms in other languages -- it's a dead end in that regard. (What follows is meant to be dripping with sarcasm.) Who might have thought that a student of Japanese might actually be interested in taking a crack at reading the original Japanese! No, impossible! Foreigners only need English -- even foreigners who say that they want to study English -- and even when the English is a machine translation that has errors!

English form
https://attainj.co.jp/kumamoto-nihongo/form/en/

Japanese form
https://attainj.co.jp/kumamoto-nihongo/form/jp/

Simplified Chinese form
https://attainj.co.jp/kumamoto-nihongo/form/cnh/

Traditional Chinese form
https://attainj.co.jp/kumamoto-nihongo/form/cnk/

Indonesian form
https://attainj.co.jp/kumamoto-nihongo/form/id/

Korean form
https://attainj.co.jp/kumamoto-nihongo/form/kr/

Tagalog form
https://attainj.co.jp/kumamoto-nihongo/form/ph/

Vietnamese form
https://attainj.co.jp/kumamoto-nihongo/form/vn/