Renga

is the oldest brother of Jiga and Ruiga and the leader of the Janin.

Background
He is the mastermind of the coup d'etat in the Land of Vegetables which resulted in the death of its daimyō. After their rise to power, the three brothers betrayed their allies, which included greedy and disloyal courtiers they had recruited, and slaughtered them all. The brothers themselves were distrusting of each other, and plotted to kill off the others in order to have more wealth and power for themselves.

Appearance
Renga has long brown hair and beige-coloured eyes. He has three purple fang-shaped markings on his face one on each cheek with the point of the fang-like mark facing up towards his eyes. He has the last fang-like marking on his forehead facing down towards his nose. He wears a purple vest-like shirt with red for the collar and the sides. He wears a blue T-shirt under this along with blue wrist coverings on his lower arms.

Personality
Much like his brothers, he was very overconfident in his abilities. He even claimed that no one has ever escaped from his Jutsu before. He was also very greedy and selfish as shown when he betrayed his allies who helped him take over the Land Of Vegetables. He even thanked Naruto for helping to defeat his brothers and said that he was going to put an end to them himself. The reason he was planning on killing them was because he wanted to keep all the money and land they took for himself. Much like Zabuza Momochi and Gengo he believed that there are only two types of people in the world, the ones who use others and those who get used. He even went as far as to say he will get to the top using anyone, whether it's his parents, brothers, or friends.

Abilities
Like his brothers, Renga has a very unique and special technique presumably only he can use. In a manner similar to the Yuki clan's Ice Release, Renga has the ability to create ice. By focusing his chakra to condense moisture particles in the air, he can form thin and transparent disks of ice. These disks have several uses. They can be hurled with tremendous blunt force at a target, which will be hard to dodge because of their transparency. They can also be strung together to spy on areas both far and hidden from a distance. He claims that he can see for thousands of miles. They also have a defensive purpose of creating highly durable shields or disks to stand on to float, much like how Gaara uses his sand to make shields and float. By forming the ice into a large lens, he can hover in the sky to focus the rays of the sun, which can focus into a powerful beam capable of melting and exploding the pinpointed area.

Renga, while preferring long-range fighting, was also seen using a sword, signifying that he is at least proficient in Kenjutsu at a basic level, if only to kill a distracted and defenceless retainer.

Part I
Peddlers Escort Mission

Out of all the brothers, he had the most twisted worldview, and believed most strongly in using people for his own ends. Following the death of Ruiga and Jiga, Renga ambushed Naruto Uzumaki and Haruna. He snuck up on them by floating on ice and launching ice disks at them, which they dodged. Then he proceeded to attack them.

He wondered why Naruto would risk so much to protect Haruna, and why Haruna would stand between him and Naruto. After using his special technique so many times, Naruto managed to come up with a way to counter it and reflect it off his forehead protector, and wounded him so badly that he was unable to continue fighting. Haruna was about to kill him to avenge her father, but was unable to go through with it. What happened to Renga after that remains unknown.

Trivia

 * His ability is never mentioned to be Ice Release.
 * It is possible that his ability is the Ice Release kekkei genkai and that he and his brothers are part of the Yuki Clan, or are from the Land of Water. The evidence that supports this is Renga and Ruiga both have water based abilities. Ruiga uses Water Release and Renga takes the water in the air to form it into an Ice Disk. Also all the brothers believe in using others much like other Kirigakure characters we have seen in the show before like Zabuza and Gengo. Yurinojō also says that they came from across the sea and Kirigakure is on an island in the Land of water.
 * His Jutsu is very similar to Crystal Release as they both use moisture in the air to create their Jutsu. Crystal Release seems to be more advanced and has many more techniques, but it is unknown if Renga can do stuff with his ice like create needles or blades like Guren can with her Crystals.
 * He has the same Japanese voice actor as Hidan and the same English voice actor as Pain.

Quotes

 * (About Jiga and Ruiga) "That doesn't matter. Whether parents or brothers, if I can use them, then I'll use anything."
 * (To Naruto) "Boy, do you know what today's weather forecast is? Cloudy and partly sunny. It's good weather for you to die!"

Renga