Well, another ended series. End at chapter 21 huh I liked this manga, it was creative with a premise for the long run. While the art was great, the story was...messy and didn't lead to anything. In simple terms, development and setting wise were within the " playing safe" zone as it didn't go further than that? All you get is the typical stuff with nothing worth keeping up with? There are a handful of other titles with a similar theme and they have their own reasons for being successful. I'm gonna forget about this manga in a few days. Like with many others, the potential was there, it just didn't meet thestandard.