I have bought her books off Amazon and the Japanese version of Amazon. I live in the US as well and I support Sensei that way! I currently have this and the Konya mo Nemurenai series in my bookshelf. Obviously it's not English translated but it's still the physical copy of the books haha I don't know if this was useful??
WAHHHH sorry for the late reply OTL
For the Japanese Amazon: https://www.amazon.co.jp/s/ref=dp_byline_sr_book_1?ie=UTF8&text=%E5%B1%B1%E6%9C%AC+%E5%B0%8F%E9%89%84%E5%AD%90&search-alias=books-jp&field-author=%E5%B1%B1%E6%9C%AC+%E5%B0%8F%E9%89%84%E5%AD%90&sort=relevancerank
If the link doesn't work because of the title being formatted like that, go to http://amazon.co.jp and type in ほんと野獣
For the US Amazon: https://www.amazon.com/gp/bookseries/B00R6PD8JC/ref=sr_bookseries_null_B00R6PD8JC or just type in "honto yajuu" or ほんと野獣 on that site
I absolutely adore this mangaka! Sensei’s mangas appear to always includes consensual relationships!! How do I support her from USA?? Man, I really want this serialized here!! ╥﹏╥