This was a fun demo! I really enjoyed the character dynamics, and the world-building was easy to understand and felt natural. The characters each felt like their own person and I could easily see the dynamic between Shizu and the love interests and how/why they'd fall for each other. Well, except for Hugh, but that's because he's hard to read lol. Liam and Faye are so cute and it never felt awkward to tease/flirt with them. Rowan I am eying with some anticipation, he and Shizu would be such a power couple!
MCs make or break dating sims for me, so Shizu was a breath of fresh air for being older as well as the responsible one of the group. I liked that she was competent and on equal footing with everyone, especially with tropes that can easily be the opposite, like the master-student thing with Faye or the sibling matter with Sei.
If I had to critique something, I'd say some of the transitions felt abrupt and the princess's true nature seemed a bit too on the nose when Shizu encounters her. Granted, I can also see it as being something the princess doesn't see the need to hide since no one would believe Shizu. Overall, I look forward to seeing what happens next! ^^