Not so serious fun, though the humor in this series is wearing thin
This series does not take itself too seriously. It isn't quite a parody of the genre, like konosuba, or at least if it's meant to be a parody it isn't that obvious. It's playful and humorous and lighthearted. It's fairly pleasant to read, provided you know what to expect when starting it.
That said, as pleasant and fun as the story is, at this point in the series the homophobic, transphobic, and sexual harassment jokes are worn out through their repetition, and pushed too far. It really detracts from the enjoyment offered from the otherwise lighthearted fun.