With Mitama Security you will get a comedy manga, which has its ups and downs. Sometimes you laugh you butt off, sometimes you get the same jokes again and again, and sometimes the joke is just poor. So it is varied but not always in a good way. But let's us start with the categories.

Story 4/10
It is a comedy manga. So yeah, story is almost irrelevant. You have a bit of storyline, sometimes you get 2-3 chapters which connects, but it doesn't have a big pictuse or something like that. It's all about jokes! However, even if it's just about funny moments, you can create a good story and good jokes at the same time. It even had the potential to do a kind of storyline, but it drifts always to jokes or abrut "funny" end. For my taste it was too much sometimes.

Art 3/10
Comedy mangas don't have to have amazing art, of course, but it still bothers me. It felt like "even I could draw something like that". Which is of course not true, but this shows how simple the art was, even for a comedy manga. And I think, with a better art (especially for the spirits) it could have better jokes and at the end better views.

Characters 6/10
What I liked was the big palette of characters. I read/watched some comedy mangas/animes, and I often experienced a hand full of characters. Here we get a ton of them! For every type of joke you get a special spirit or character. And it doesn't just happens ones then it get forgotten forever. Also, it was really nice from the Author that he worked in fan made spirits to his story. And as I mentioned, with a better art, it would maybe even get higher points. (because a simple drawn fish as a fish spirit is maybe funny a bit, but not overwhelming)

Enjoyment 6/10
I would say, the most important part of a comedy manga is, that it brings you to laugh and enjoying it. And I must say, it succeeded... However just for the 3/5 of the manga. Especially as a sport manga and pokémon fan, you get some really nice jokes! But on the other hand total unfunny jokes... And of course, it depends on your humor.

Overall 6/10
Overall, if it hits your humor, you enjoy it (maybe not all chapters, but at least the half of it), if not you will hate it... So I would say, read the first 3-5 chapters, to get a picture what kind of comedy it is, and if you laugh (or at least smirk) give it a try. If not, then not.