It's a shame this is getting the axe, but I can't say I'm surprised. As much as I personally like both gyarus and yuri, the story itself just hasn't gone anywhere in three volumes now. After the basic premise was set up in the first two chapters, nothing has really happened since then. The MC being isekai'd into the world (or even being a gyaru) hasn't really had any influence on anything, the villainess's reputation hasn't changed at all, nothing has happened with the game's original protagonist, and so on... The one big development we had was the gyaru's hand being cut off, but of course that got reverted instantly and had basically no effect on anything as a result.
As some people said here there are other series that spin around in circles with the main romance/plot just as much, but those at least tend to have large casts of characters that each have their own spotlight chapters to flesh out the world and everyone's relationships a little bit. And even when they don't, there's at least some chapters with the main couple where we get to learn more about the dynamics of their relationship or even just who they are as individual people.
That chart on the scanlator page of every chapter showing the relationships between the three female leads? That's the whole manga. It was established in chapter 2 and you could have skipped right to this chapter without missing a thing.