There's so much to love about this! The art/design is amazing. Great sprites and color choices. The music is awesome and the sound design works well! The grimmore is fun to read too. It's a very polished package all around.
My only critique would be that I couldn't really tell if I was doing good or not while playing it. Part of it may have been on me for not being observant enough. I got the idea eventually that it was important to focus on weaknesses. I guess a tutorial or even just an instructions page might have helped.
Despite this, I guess I did fine! The demon queen accepted a date with everyone, yay! Overall I really liked this game. Great work!