Ratman was a fairly interesting story about a short kid that got tricked into joining an evil organization, and resultantly became their almighty super-powered villain that would have to fight alongside or against the various superheroes of the big city. I really enjoyed the cute relationship between the shy classmate and the MC, the organization's three main henchmen being both comic relief and surprising deus ex machinas, the heroes not all being total scumbags to hit you over the head of its reversed good vs evil fighting, etc. etc. It had a nice run until it got a rushed ending, but at least managed to put everything together in a nicely wrapped bow and make it look all pretty within the epilogue.
Now with this series, we're given a much more simplistic art direction, a ton of gags, and an MC that becomes an evil organization's henchman instead of becoming their super villain. For all those reasons, I'd consider this series to be lesser than that of Ratman, but mind you, lesser doesn't have to translate out to being inferior; in this case, the series is a gag manga that doesn't take itself seriously in any way, and definitely knows how to use that self awareness toward making itself come off as quite charming.
Aside from just Ratman, it has me reminiscing about Henchman 21 from the animated TV show on Adult Swim, Venture Bros, as one of the evil organization's henchmen that rose up in the ranks to completely surpass his peers. Similarly in this series, the MC doesn't have any special powers, but does manage to look after his comrades and especially his family members, thus making him likable and able to become a stronger individual.
The other characters aren't particularly too special, yet they arguably do add on to being funny toward spoofing Power Rangers, adding more wackiness onto the MC's bizarre new life, or just being downright goofy in either appearance or behavior. I'd like to see a side romance develop between the MC and his superior, but for now, it's not quite easy to tell just yet.
Whether this will remind you of Ratman or just be a light hearted read to enjoy, I do recommend giving it a shot for at least feeling somewhat fresh. Not the most original concept, but again, a nice one to be able to appreciate...