The Japanese version of 'An Antinatalist Handbook' has been updated and now has 15 new chapters, in addition to existing 45.
The new chapters are available to read here: https://antinatalisthandbook.org/languages/japanese/#japanese-46
The handbook is a collection of common excuses people use to try to justify procreation, and arguments that antinatalists can use to respond to them.
Lawrence Anton and Laith Malek Reem are the original authers in English, and the translation team at ANJ has been working to make the whole handbook available in Japanese.