Kadokawa site: https://www.kadokawa.co.jp/product/322405000119/
They currently only have a clean cover despite it coming out in a few weeks and they seen to have switched to webp to boot. No idea if it will embed:
cover

This sounds super cute. Though I just wish it was a natural relationship rather than the cliché arranged marriage from your parents.

Sounds fun, and modern day setting is something I haven't seen before in the otome isekai genre.

13 is too damn many (but I'd still give it a try).

I suspect the author wanted to write more but wasn't allowed to. Still, we got a proper closure for this series. I don't know if this is popular enough for JNC to consider licensing, especially with a completed fan translation, but one can always hope.