It's a nice story, but the flow is a bit weird. So she reincarnates, and she has this unusual hobby of liking guns (which isn't super strange). and then they shove her amazing-ness down your throat in a few chapters and then they're like; we won't talk about that anymore because if we did the world will crumble in a year or something.
I'm just tired of the Main Characters going all like: "tee hee I could 100% speedrun this but I'll let the world suffer for the sake of the world because if I got caught then the world would end." But seriously though, can you use your main character head and think of a better solution than ignorance??? You can let a random girl find your secret but you can't let a dying guy (which you could 100% save without repercussions.) get in the way of your "slow life"????? And right now, she doesn't even need to be a villainess because it literally has nothing to do with the plot other than having her start the story with motivation. But since she likes guns so very much, she would've crushed any world with her modern firepower regardless of where she might've been born into. That could be a much more interesting story rather than the no reason whatsoever villainess route. (she could've started a gang or something)
Perhaps I'm ranting about Iskai on the wrong manga but I don't really care. I dropped this some time ago because of what a mary-sue of a strong woman she is. less than 60% effort is put in and the rest is given to her by the world she is in. 100% sure that the original ML's of the otome game are there just to give her fanfare. She acts like people are stupid when her actions don't really make too much sense either. Perhaps I'm reading too fat into this but, I'm too tired of the similar reoccurring plots. The origins might be different, but their journeys are all so similar.