I left this as a review but I figured I'd comment as well. I remember playing the demo a long while back and was so excited when the full game released and WOW. If you're hesitant on whether to get or not, please please please do! Its definitely worth it!
Now onto the game, I adored the characters. They are so diverse and felt different from the next, consistent in their character too. The relationships you develop felt natural. I really liked the switch in lingo from speaking to those of the dukedom to Kid. Kid's interactions were hilarious. I adore the sub verse of expectation regarding the usual isekai cold duke stereotype for a shy and romantic one. He was adorable. I enjoyed every moment of the banter, flirting and wholesomeness for the romance route I chose. The spicy scenes were also VERY nice. The art is gorgeous, the outfits, backgrounds and sprites are beautiful.
The bittersweet moments that occurs is so well done. The balance of angst, comedy and heartwarming moments were phenomenal. I very much HIGHLY recommend this game, (spicy vers or not)!