This technique allows Aiko to exhale thick black fumes from her mouth, which prove extremely detrimental to the respiratory system of her opponents upon inhalation. Once the smoke has covered a sufficient area, Aiko can ignite it, resulting in a searing blast that does significant damage to whoever is unlucky enough to be caught in it. A drawback of this technique is that prolonged usage can damage Aiko's own respiratory system. In addition, it is quite chakra-taxing.