Now, the points I consider weak in the series:
The main character is frustrating. The constant use of "nya" gets tiring, and they fit the typical carefree, clueless protagonist archetype but contribute nothing to the story. When they learn a lesson, it feels forced.
They decided to include a filler episode in a 12-episode anime, which makes no sense.
Good points:
As mentioned, all the other characters have a well-developed backstory or play an interesting role in the current storyline.
It has a decent amount of fan service, but it's still watchable even with people around. Plus, it doesn’t go overboard and includes it at appropriate moments in the story.
