Iburi Clan's Kekkei Genkai

This unique kekkei genkai is possessed by the members of the Iburi clan which allows them to turn their bodies, either partially or fully, into smoke to serve various purposes. While in their smoke form the user becomes impervious to damage and can use this trait to gain an opportunity in battle, for example by letting kunai simply sliding through them without any effects. However, if needed, they can still interact with physical objects. The ability can also be used offensively by entering the opponent's body to cause pain from inside. According to Yukimi, the ability manifests itself greater when the clan member is younger.

Initially, the clan members did not have complete control over the technique, causing them to sometimes transform into smoke without intending to do so. Their ability was partially stabilised, however, through the application of one of Orochimaru's cursed seals on each clan member. While in their smoke form, they are vulnerable to wind, as dispersion while in their smoke form is fatal.