It's pretty common to see ecchi animes forsake logic for more ecchi scenes and that's not a bad thing if the ecchi scenes are nice but seeing this anime balance out the ecchi scenes and the logic behind the reason why it happens is pretty refreshing to see

Kikuru Madan works as a guard for his city and he wants to graduate from that job because of his pursue for a normal young life. But as fate would have it, he starts receiving new recruits who he thought would possibly succeed him so he could finally retire but turns out they're worst than he thought

That's all the plot actually, there isn't a main goal in this anime, kinda like a slice of life. There aren't any "defeating the demon lord" "protecting world peace" "getting revenge" "being the strongest" kinda plot, it's just a man who wants to retire because he's tired of his job. The girls, who're obviously going to be in his harem, all have something they're bad at, such as being scared of monsters, lazy, can't control their powers etc. They join Kikuru's party to get training and overcome their problems. Although most of the time they look carefree and relaxed, when situations comes to worst they actually got themselves together, showing that although this is a ecchi anime, it could still take itself seriously and not just have cheap fan service

I mentioned that this anime's plot actually is constructive and it actually is. A minor spoiler, the monsters that Kikuru and his party are fighting are really attracted to the girls, in a sexual manner of course. When you look at tentacle ecchi scenes, have you ever wonder "Why is the squid doing that?" well I haven't but this anime gives an explanation nonetheless. The way and the timing they explain it as well is like it doesn't even matter, the anime does not care about the plot

"The explanation must be pretty bad if they put it off so long until they explained it"
Well no, first of all they didn't leave plot holes unlike most ecchi based anime. And second, they explain it just like how a fantasy anime would explain the concept of magic. Yes it doesn't make sense according to the rules of physics of our world but it makes its own rules and it follows it, that's fine. And I'm not saying all ecchi scenes has a reason or purpose but for the most part it does

I would recommend this to anyone who does not know what they want to watch because of the amount of anime that's released every season. I would not recommend this to someone who is in the mood for ecchi anime because the amount of cheap ecchi this anime has dilutes the value of some of its great ecchi scenes, it almost makes you not wanting to watch ecchi. I also won't recommend this to someone who wants to pay attention to the plot because the show explains the logic of the world at the latter episodes for some reason, so the story seems dumb at the start