Waging War

Attack on titan fanfic you are a female reader called madika(i dont kniw i just thought on my feet) basicly it starts with madika's grandpa talking to her about the titans it skips to when shes around eren,mikasa and armins age she is a scout but she became a scout befire eren and his freinds you never knew eren was a titan shifter but youbknew you were and your ability was similar to erens,strength,you saw the collosul andv armoured titan but you never saw the female titan you knew who it was though,annie,you lost alot of good freinds to the titans and when eren,mikasa and armin were placed in your control you swore bever to loose them...