In this case, the concept (while certainly not original) has some meat on it... A powerful wealthy family has seen the heirs to the fortune dying off due to mysterious circumstances so the patriarch takes extreme measures to ensure the safety of his last remaining close heirs, a sister - brother pair of highschool students. The extreme measures in this case being a pair of male - female Tomb Raider/James Bond/Terminator grade body guards hiding in plain sight as maids to the two siblings, as the kids try to maintain some sense of normal life.
But it goes down hill from there. The writing tries to stuff in more tags than is necessary (school life, action, cyborg, sports, harem, reverse harem, etc.) and more often than not descends into oppai fetishism. The lead characters would have been much more interesting if they had been simplified, but given more depth, but that would have taken more than two drafts of the scripts. The art had some interesting opportunities, but was generally limited by the bouncy writing and generally looked choppy. Characters were mostly of-the-shelf highschoolers, with the exception of the way over the top titular MaidGuy. Acting had the same issues with the writing, and the performers mostly phoned it in.
Mostly, I felt bad for these characters that there could have been a much better show here if the production co. had really put some effort into it.
