Invasive Fluid Domination Technique

Invasive Fluid Domination Technique (侵襲的流体左右の術, Shinshūteki Ryūtai Sayū no Jutsu) is a deadly water release technique made more powerful through the Hōzuki's Hydrification Hiden.

Overview and Origins
An ancient style by water release masters, they begun to take control of the water within themselves. This allowed them to manipulate themselves through fluids. This made up for say, their lack of taijutsu prowess as it combined it with their nature transformation of water. The technique later found even more offensive power as the users found that by seeping their water chakra into the opponent, they could control the chakra and by extension the person through the fluids the user's water mixed in with.

However, similar to genjutsu, this proved futile if the opponent was skilled in dispelling and chakra flow throughout the whole body. The casters needed a way to manually enter the opponent's body so they could control it with more ease. This is where the Hōzuki made the technique their own.

By using Hydrification in different methods, the user can insert themselves or part of themselves into the opponent, taking control of the unsuspecting shinobi or target with the watery form. With this, the user can cause internal damage to the opponent through their fluids/control them with ease, essentially a water version of the Body Oxidation Technique. Skilled users such as Enen use this to cast Sōsuimyaku within the person or other techniques.

Trivia

 * A lot of inspiration for the technique came from Bloodbending of Avatar.