River Release, like all Kekkei Tōta, is an ability derived from the genetic mutation within an individual to be in possession of, and combine, three elemental affinities. To activate the ability, one must combine all three natures into a single form of energy, which is then manipulated based on the ratios that it is composed of. Due to the rare documentation of Kekkei Tōta, it is believed that advancement to this level of ability brings you a step closer to the penultimate Ninjutsu: Yin—Yang Release.