The full version has a lot more content. Starting chapter 2, the routes dive deeper in their distinctive story. I'm glad Zeikun made a good impression even though he is a jerk, haha.
A lot of effort and love was put into the art. The soundtracks were especially composed for this game. Thank you for the praises!
If you like to see more of the side characters, I recommend to play other routes. They have different roles and interactions with the MC. By completing all 16 endings, you unlock the bonus scenes. Your suggestion is already taken in consideration.
Thank you for sharing your thoughts!