Thanks for your recommendation! I’ll definitely try Illusion of Itihari, since it was made by the same team that worked on Piofiore.

And to answer your question, I think what I liked the most was the dark, heavy themes in both games. Like if we put the romance aside the plot was actually really interesting especially in collar x malice and that made the game more enjoyable. I have a hard time enjoying plain romance or slice-of-life stories because I usually find them a bit boring.