Body Oxidation Technique

While in smoke form, an Iburi can enter a target through their nostrils and/or mouth. Once inside, the targets muscles, organs, nerves, blood, and even chakra become an extension of the Iburi's will, essentially become a new body for the user. While in this state, the Iburi can talk through and experience everything the target does. Alternatively, the user can torture the person from the inside, acting as a means of interrogation, possibly even kill them. While in this state, if the target dies. So will the user.