I am Orochimaru

This is a OC SI/Self Insert where the person is not in fact reborn as some random side character; open to be preyed upon by outside evil forces; but as one of the potentially evil forces right from the get go: Orochimaru. Naori Uchiha is one of the pairing but isn't available in characters. Orochimaru/Naori/Tsunade/Mei only.