I have more than one reason when I said I hate meeting cannon characters. Being reincarnated was one of them. Did I need to hang a sign like "I WILL NOT BEFRIEND WITH CANNON CHARACTER" on my neck? OC(Semi-SI).
She leads a life being indifference. Born into normal family, having a normal-utterly normal lifestyle. These all crash down when someone decided to grab her butt... Oops? Be warned, wanting to be indifferent doesn't make you be indifferent.
Being reborn again? Doesn't matter. Being reborn into a world full of man-eating titans? Now, that's a problem.. (rate M due to violence and death)
War can bring many things. Conflict, competition and death. It's get worst if you fall into the world of shinobi with body of five year old! With no way of returning, no hope and no home, will you be able to survive? "This is not a game, but a survival!" Rate T for blood, swearing and death.