Question about game localization issue

I have a bit of a situation with Unicorn Overlord game and wanted to ask if anyone knows what can be done about it.

So, to preface - I live in Ukraine and Switch e-shop is not configured to work in this country. It doesn't default me to any other country or Europe at large, it just boots me out of e-shop saying "thank you for your interest". To work around it, up to now I've just used Japan region, and it worked reasonably well - the e-shop itself is in Japanese only, but the system language can be set as English independently, and all the games I've played prior used to default to the system language. So, I've bought Unicorn Overlord today, and the previously described behaviour is not the case with this game - all the text is in Japanese (with the exception of the main menu), and there is no way to change the language from inside the game from everything I've read. I am still new to Switch, so I thought to myself that I will just refund the game in Japan region and purchase it in a Europe/US one, but apparently Nintendo doesn't do refunds, so I'm kinda stumped on what to do. Opening e-shop in a different region seemingly treats Europe/US releases of Unicorn Overlord as a different game, and prompts me to buy it again. Is there any kind of language pack that can be downloaded, or in general can anything be done at all to play the game in English?

I hope it's okay to create a separate post about this question. I've checked the subreddit rules - and it seems that it's currently allowed. I asked this question in the daily thread, but didn't get any replies. I understand that this is a fairly specific question, so I might not get any - but I thought I'd try anyway.