Hi guys, Charlotte here.
I’m going to update the support sensei graphic soon because there are more translations of Hirunaka no Ryuusei, including the German edition.
So far, I’ve found that HnR is available in Chinese, Thai and Italian.
If you know it’s been translated into another language, please reblog this post or message us with the publisher’s website. If you don’t know their website, tell us anyway! :)