@AkiTooru
Ahahahahahha... Oh, you're serious?
So it is another ORIGINAL fantasy with game mechanics and main hero who SUDDENLY got new power, by rebirth/reincarnation/transfer to another world, and now he's going reach the top. Without a struggle of course. Add stupid interaction and characters - "Oh you killed the one who was about to kill me! Thank you so much! Oh, your a monster too! No way. What? You're saying you're a human? Of course I believe you, you certainly couldn't have ulterior motive. You slew one of your own after all. And of course I will help you get into the city, because I'm 100% sure you're not a monster whose aim is to make a massacre".
There's no way she's wearing that because she's a complete beginner, on her first day, and doesn't even know where most shops are.
And of course poor girl is just a beginner, who decided from the start to drop by to a certainly not dangerous place about which she know nothing, since she is beginner, and of course she never held a sword and decided it's a good idea to train with an actual monsters. Because if she train with someone before, a knights for example, they would teach her something. Asking before hand, preparing to journey and collecting information/intelligence is not a common sense it's the thing that only experienced adventurous would do. And of course she is not wearing proper armor not because she is nothing more than walking tits for the sake of fan-service.
Characters, their interaction, setting, accuracy and at least reasonableness of action is not part of plot. Yeah.