Hi! I actually removed the Japanese (and Slovenian) version just 2 days ago, when I updated LOK to the third edition. This was a major change, not just in terms of new content, but also which program was used for making the PDF. This means that making a new Japanese edition would need completely new implementation of the text + new translations of course. I apologise for this. If you're interested in the translation of the second edition, it's still available on the translator's page: https://gomamisomix.hatenadiary.com/entry/2022/09/24/001012