What a ride.
The story builds up quite slowly, but from volume 3 onwards, it only gets better. I almost dropped it after the first couple chapters because of the characters being too stuborn to even listen to each other, so it took much longer to solve the actual problem. Thankfully, it's a temporary issue.
Although this kind of reluctance keeps coming up later on, it's nowhere near as annoying. MC should have done to Ruriko what they did to Carpo. That was perfect. Hell, she had more balls than him in this regard. Sometimes, it's best to talk less and act more.
The original soundtrack is great and there are quite a few memorable moments. Can't really complain about the artistic choice, everything fits amazingly. Very well done.