This manga is not completed at all. The story has been only half developed (if not less) and many important passages have been skipped. Due to this incompleteness, the story lacks of any deeper meaning. It is like a manga for 10 years old kids who would not care about a proper development and ending.
The only decent thing is the art work.
It is a shame that the mangaka, after starting with quite a good idea, then has not been able to carry it on properly.
I suggest you to not not waste your time with it because the delusion at the end is quite big in finding that there will be no sequel.