So what happens when you are one of the first minions to ever join and evil organization, and you survive every encounter with the sentai heroes sent to stop you, and your evil organization eventually wins? Well, you apparently become someone capable of BAMF combat, but still only capable of mook-level evil. Literally no one is powerful enough to stop your evil plots... but you plots consist of trying to end up in a series of rom-com level snafus.
Even though No. 6 is an ass, he's pretty self-aware of it, doesn't take it too personally when someone gets pissed at his 'evil' shennanigans, and doesn't actual take advantage of people when they're vulnerable (well, unless it's his job to take them down, but even then he's pretty low on the evil-ness scale). There's also a ton of cheesy tropes from 80's and 90's anime/manga.
I enjoyed this and I'm interested in reading the rest of it. It also has the feel of an isekai, without actually being an isekai. No. 6 and Alice are dropped on a habitable alien world by their evil overlords to start the colonization efforts, because despite having almost completely taken over earth, the planet is still trashed and humans will need another planet to live on. Luckily (or not?) this planet has human-like life, and they have a medieval-level society. So it's like isekai, without actually being isekai'd.