If you're asking yourself if you should try it DO IT ! I bought it on Steam and I don't regret a single dime. As an isekai/ historical manga lover it was so fun to play ! I mean this dev never misses the mark for me.
I grew quite fond of the characters. Duke is obviously my favorite, he's just adorable and so fun to tease. Zofia and Cass are fun too. Kid, Kal and Roy are assholes that you still love, like annoying siblings.
I am just a bit saddened by the end, I replayed in order to find another outcome to the ending of some characters to no aval. And isn't there a reference to The Fae King Is My Roommate in the ending one ? Is he GM ? There are some mysteries left unresolved here.