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The user creates a cloud of mist which they release from their mouth. This mist has extremely corrosive properties, capable of melting even the bones of the Susanoo. The technique has an inherent disadvantage in that its effects are indiscriminate, limiting its usage to areas that do not contain allies. In the event that the mist escapes the containment area, the user can adjust the pH of the mist to safer levels. Though the mist is corrosive to all around it, the user seems to be immune to it, as Mei used it in an enclosed area without endangering herself.
After learning to perfectly mix chakra natures, from Mei Hibiki Ryūsei demonstrated this ability despite not having the Boil Release kekkei genkai.