It's not a bad RPG, kinda simple but it's not bad on the slightest. My only problem with it is that it's that its mechanics are kinda obscure, specially the smut ones. F95zone has some guides still( https://f95zone.to/threads/magical-girl-celesphonia-v1-06-shimobashira-workshop-kagura-games.116302/page-51#post-8126490). Being fair, it looks like one of the best of the genre.