hii @COmonster
Hmm at the moment only the English version of Collabora Office is available publicly as a snapshot. If you need additional languages such as Japanese, the best way forward would be to get in touch with our team directly to discuss subscription options. You can reach out via our contact page here: https://www.collaboraonline.com/contact-us/ or request a quote here: https://www.collaboraonline.com/get-a-quote/
Thanks
Darshan