You can play as a Harmony, a young apprentice at the Academy of Magic (which is now a castle). There is only one resource - a Power, which is gained by collecting a certain body fluid from your fellow students. The game is pretty simple, so there is no need going into detail. It has plenty of unique, high quality scenes and I recommend to check them all up. Patreon supporters will get access to a cheat (increase power for fast leveling up) and from Level 2 to the location of Forbidden forest.