Ryōjin

Ryōjin is a Mangekyō Sharingan technique unique to Aoi Uchiha's Sharingan.

Abilities
Ryoujin has many abilities, one being that it can douse all flames except Ameterasu but it has an affect against ameterasu. With ameterasu, Ryoujin can't put out the flames, but it can stop the burning effects. For example, if Ameterasu was to say touch Aoi, if Aoi douses himself in the water of Ryoujin, Ameterasu will not burn Aoi. When a lightning technique is used in the waters of Ryoujin, it does not work, the waters of Ryoujin cancel out the lightnings effects. One of the strongest effects of Ryoujin is that it can absorb any type of liquid into Ryoujin's water, once that happens the chakra converts the absorbed liquid into more Ryoujin water. A way to prevent this from happening is to cover yourself with a nonliving solid that has no openings so the Ryoujin's water can't get through.

Trivia

 * Ryoujin was the tutelary deity of the sea in Japanese mythology, basically the guardian of the sea inn Japanese Mythology.


 * Ryoujin is actually a dragon in Japanese Mythology