The manga has three story arcs with an end boss each. And while the first part starts more story based and is basically an interesting school life romance with supernatural and action elements, the later parts become increasingly more action oriented. Especially the last story arc is pretty much mostly fighting with a great deal of violence and a lot of gore. I like more story than action oriented works. So this one is not exactly what I hoped for after the first chapters. Additionally the background story gets so confusing in the last part that I didn't understand most of it. In the end large parts of the manga are okay, only with a disappointing development and conclusion. And the last extra chapter is totally unnecessary in my opinion.
