tl;dr: A manga with a good cast and good art that was clearly forced to drag on for longer than it should have but still manages to do a decent job overall.

This manga started off pretty interesting. The beginning introduces a good main cast of characters that are set up with decent personalities and backgrounds with what feels like the beginning of decent character arcs. The comedy is solid. The plot basically just amounts to introductions to the main characters, but these are pretty good and work well with the characters they focus on so it's all around pretty enjoyable to read.

In volume 4 it reaches what is to be its overarching story and the start to this is decently interesting. However, then this story is essentially put on pause. It does a bit with pushing characters arcs for a bit which it does pretty well, but it feels like it runs out of things to do with them in volume 6. After that it enters a phase where it feels completely directionless. The plot doesn't really move forward at all. There's essentially no progress with the main cast, rather it feels at times that characters are being inconsistent for the sake of dragging out their character arcs. This is especially annoying with Yuuto, because it felt like he was finally progressing as a character but then he continues being useless. New side characters are introduced and side characters out of focus are focused more on, but outside of a couple it feels like they're completely insignificant, and the ones that do matter aren't all that great or well developed. The comedy is still decent, but it does start getting repetitive at this point. It basically feels like filler. In the afterwards the magaka essentially states that this was supposed to be a much shorter series that was pulled into being longer to benefit sales wise from the anime, and it really shows.

Things pick back up in volume 9, where the overarching arc that was introduced what seems ages ago finally starts making serious progress and there's a pretty intense arc that's tonally quite a bit more intense than previous arcs which also results in good character and relationship development. This arc comes to a good conclusion that builds into the next arc, the final arc. This final arc is also done pretty well, and wraps up Yuuto and Himari's character arcs and relationship arc quite well. Though it also felt rushed in that it didn't do as good a job with anyone else, or rather it did kind of do a good job, but it skipped the most interesting part completely rather than fleshing it out which made it feel like a throw away scene rather than one that matters which is disappointing. The epilogue also felt too quick.

In terms of overall thoughts, the action is decent, although generally pretty simple, but generally looks good at the minimum. The art is also fantastic with good style and good framing. And as a random note, it felt kind of weird though how much Yuuto's character design differs from the anime.