Yukimaru is a young boy (it is still unknown if he is a shinobi) who appears in the second Naruto Shippuden filler arc. He is a test subject of Orochimaru, because he has the ability to control the Three-Tailed Giant Turtle. Yukimaru is a quiet boy, probably due to his past, he constantly ask questions like "Is it going to be fun?". His main goal is to find home and is told by Naruto that home is a place where people think about you, which lightens his spirit. Yukimaru always telling that he has no home to go to. Later on Kabuto sets off together with Yukimaru for a journey. They eventually arrive at a dark swamp. There, Kabuto conducts an experiment where he forcibly releases the full power of Yukimaru's chakra. This results made the Three-Tailed demon to partial emerge before submerging again. Later, he is sent out again with Guren to complete a mission. During which, he succumbs to sickness, forcing Guren to care for him. As a result, he seems to have grown attached to Guren and possibly vice-versa. This is further emphasized from how Yukimaru reacted when Guren tells Yukimaru she has to head out in a manner similar to how Yukimaru's mother did before presumeably dying. He then gives her his necklaces with a special charm on it. Later, Yukimaru again bumps into Naruto, who offers for the orphan to join him in Konoha, to which Yukimaru politely declines as he feels his place is with Guren. Soon after, Kabuto returns to conduct another experiment with Yukimaru. He has Yukimaru take several medical pills. Ultimately, this finally causes the Three-Tailed Beast to emerge. He is able to controlled three-tailed beast, for the first time he has to drink the pills from Kabuto to release Three-Tails Chakra but later he manage to release it without pills. Yukimaru also has illusion technique, when he meet Naruto, white camellias appear on everywhere. Then he and white camelias (tsubaki) disappear on the same time.
Tamaki is a young girl who works at a shop in an abandoned city with her grandmother, Nekobaa. They live with a lot of cats, including talking ninneko such as Denka and Hina. Many years after the Fourth Shinobi World War, Tamaki moved in with Kiba. The two have many cats and dogs as pets, some of the latter being pups to a now elderly Akamaru. Yet, their exact relationship is still unknown. (Source: Narutopedia)
Hotaru (ホタル) is the granddaughter of the former leader of the Tsuchigumo clan, En no GyÅ�ja. One day Hotaru was under attack by a group of ninja who were actually after Utakata. Utakata saved Hotaru from the ninja, but was wounded in the battle. Hotaru ran for help from her fort, saving Utakata's life, causing him to become indebted to her. After this, he became a sort of master to Hotaru in order to hide from anyone who is after him. Later she finds him sleeping under a tree and Utakata got angry when Hotaru called him master, saying that the relationship between a master and a student is not something you can count on. Utakata reluctantly begins to teach her the Water Walking Exercise first, believing that she wouldn't master it. In the morning, she shows that she was able to stand on top of the water by training all night. Next, Utakata taught her Water Release: Violent Water Wave, once again believing that she would not be able to master it without water-natured chakra only to discover she does possess water-natured chakra. She later found Utakata under a tree and showed him the she again mastered the technique much to his suprise. When a group ninja came looking for the Tsuchigumo clan's kinjutsu, Tonbee had Hotaru, along with Utakata, take the clan's forbidden jutsu so that ninja could not retrieve it. While traveling, Utakata got upset at Hotaru for calling him master (å¸«åŒ , shishÅ�), at which point Naruto arrived, believing Utakata to be attacking Hotaru. Hotaru broke up the fight and Utakata left her, deciding that Team 7 would be capable in protect her. As she watched him float away in a bubble, she tried to convince him not to leave, but was unsuccessful in doing so. While on the way to the clan's secret village, Naruto argues with her only for Yamato to devise a plan to convince Hotaru to accept their protection. Using his unique jutsu, Sai drew mountain leeches to fall on Hotaru, who freaks out and becomes afraid, causing her to accept Team 7's protection. When they reached the village, Team 7 leaves Hotaru with the Tsuchigumo clan and Hotaru thanks Naruto before he leaves. When Naruto left he saw the look on the peoples faces back at the clan's village, so he decided to return to check things out. Source: naruto.wikia.com
Gozu (牛é ) is a shinobi who appeared in the second Naruto ShippÅ«den filler arc. He is a subordinate of Guren He is unsociable and quiet, making people unable to figure out what he is thinking, but his battle skills are without a doubt very dexterous. He relies on taijutsu and brute strength and preferred fighting alone. He holds a special sentiment towards Guren and was her most loyal subordinate, even stating "I will accompany you no matter where you go". The reason for this was that Guren saved his life while he was imprisoned by Orochimaru, giving him water when he was dying of thirst.
Nurari (濡羅�) was a shinobi who appeared in the second Naruto Shippūden filler arc. Nurari enjoyed toying with his foes and constantly mocked them. He also was shown to be a bit of a drag queen when he whimpered feminine shrieks or moans whenever he was in danger. Another example was when Rinji, and later Kabuto, gave him a mocking stare, to which he remarked was rude.
Yaoki (屋沖, Yaoki) is a ninja from Sunagakure and a subordinate of Gaara along with his partner Korobi. He is shown to be cowardly and wimpy around Gaara, due to him formally be a murderous maniac. When Konoha and Suna started to get along again, Yaoki was assigned on a team with Gaara to take out a group of bandits located between Suna and Konoha, which Team 7 was also assigned to. When Gaara was captured by an assassination squad from their village, Gaara tells them to leave because the squad after only him. Naruto runs into Yaoki and Korobi, seeing Gaara is not with them and asking them why they abandoned their friend. The two both wonder if Gaara is their friend. Yaoki and Korobi both assisted Naruto in Gaara's rescue and they tell him they're his friends. When their mission was accomplished, Gaara asked Yaoki and Korobi what they said and they happily tell him they're his friends. (source: Narutopedia)
Korobi is a ninja from Sunagakure and a subordinate of Gaara, along with Yaoki. Korobi was assigned on a mission along with Yaoki and Gaara to stop a group of bandits that were located between Suna and Konoha which Team 7 were also assigned to. He was shown to be cowardly and wimpy when Gaara due to Gaara's killing impulses which he got rid of after Suna's invasion. When Gaara was caught in a trap by Suna's assassination squad, he told Korobi and Yaoki to get away. Naruto runs into them, learning that Gaara was captured and asks them why they abandoned their friend. Korobi and Yaoki both wondered if Gaara is their friend. Korobi and Yaoki both assisted Naruto in rescuing Gaara. After their mission was finished, Gaara asks Korobi and Yaoki what they said to him and they happily say they're his friends. (source: Narutopedia)