A Shinobi's Guide to Not Dying

I went to bed and I woke up. Normal, right? Wrong! Rather than waking up in my apartment and getting ready for a job I was paid too little to do, I found myself reborn into the world of Naruto. Why? I have no clue. How? Same answer. What am I meant to do? Simple. Survive. Easy, right? Wrong again. I'm not a member of a clan. Not a main character. I'm a nobody. A random civilian orphan about to enter the academy. I have no talent, no Kekkai Genkai and nothing remotely special about me, right? Wrong again. You see, I have one thing that sets me apart from the rest...knowledge. Hopefully, I can survive. My name's Rei, Rei Fujikage. A random civilian orphan in Konoha and here's my attempt to survive the hellish world of Naruto.