And it ends on the usual note, seesh, besides filling in Loli and shota stuff, nothing really happen in the story, but not really, this can't just be serious in 1 arc, and not in the next.
The author always teases with a bit mystery in doesn't really matter (read: dumb) arc and till that time when the mystery will be uncovered, he just fills it with some fluffy warm fanservice. Well, seems fine to me.