Predictable, boring, and cancelled. The way this manga starts out indicates it was supposed to be some kind of epic 100 volume Bleach clone, but apparently that never happened and it was cancelled after only 3 volumes. While there isn't anything offensively wrong with the story, there also isn't anything good about it. It's generally just a school action/drama about catching monsters. Some people want to save the monsters and others don't want to save the monsters...that's it. I think this is one of those instances where cancelling was the right choice as it lacked any type of compelling hook.