Slow Burn

Reincarnation does not always go smoothly. A young girl survives the Uchiha Massacre (except she doesn't, not really, Haruka is dead and Rei is dead but they are alive and that is wrongwrongwrong-). In her head two sets of memories and personalities battle for dominance (painpainpain whoisshewhoishshe-), and she is doesn't know whether to laugh or scream. Uchiha!OC-insert