Kaji is in the same grade as Ayu and Nina, and is also the school idol. He is considered cool and always has a nice smile. All his fans are constantly giving him presents, and he even has admirers from the 3rd grade. However, this is only his outer mask. Kaji is in reality a normal guy who hates being given presents by people he doesn't know. But he is working hard on his "nice person" persona because the girl he likes, Ayu, once told him that's the way she liked him. He becomes closer to Nina after she discovers his deception. He is an introverted person, and doesn't like giving away his real feelings or thoughts. Kaji belongs to the school's baseball club. His best friend is Tsujiai.
Tsujiai is a classmate of Kaji, Ayu and Nina. He is the head of the male tennis club and is a slightly extravagant person. Ayu seems to hate him because at the start, he always managed to destroy her chances with Kaji one way or another. Tsujiai introduces Nina to Doraemon (which she loves). His best friend is Kaji and he likes Nina which is shown more in the manga than in the anime. He has a cat name Shinnosuke and is the third person to know that Nina was a magic girl because he saw that Rio the cat transforms into a human.
Gouzu and his brother Meizu formed the Demon Brothers. They were hired by Gato to kill the Bridge Builder Tazuna, and therefor stoping the work on the bridge from the Land of Waves, making all of the Wave Country's citizens lose all their hope. They bothy attacked Tazuna, who was guarded by Team 7. After a little quick battle, they were tied up to a tree and left there. The Demon brothers are a paragon of coordination attacking. Their large metal gauntlets house a retractable shuriken chain running between the two of them, which they can use to bind an enemy and then slice them to pieces. In the event that the shuriken chain is neutralized, they also have a release mechanism, to free them up for individual attacks. They use the sharp, poisoned claws on their gauntlets to shred their foes. As Kirigakure Chunin, they are renowned for their fighting resolve.
Dengaku is a food stand merchant in the Fire Country who sells a variety of things. His stand was where Tsunade drank sake with Jiraiya before she met with Orochimaru.
Ami (亜美) was an Academy Student from Konohagakure. She appears during a flashback to Ino Yamanaka and Sakura Haruno's time in the Ninja Academy. During a kunoichi lesson she taunts Sakura about her forehead, prompting Ino to throw a flower (that she claims is poisonous) into Ami's open mouth. Ami quickly runs away to tell their teacher, Suzume. She has purple hair in a style similar to that of Karin. (Source: Narutopedia)
Shiore is a Genin from Kusagakure. He and the rest of Team Shiore are killed and impersonated by Orochimaru before the Chūnin Exams. Izumo Kamizuki, Kotetsu Hagane, and Mozuku eventually found their faceless bodies, alerting Anko Mitarashi. (Source: Narutopedia)
Age: 14 (I) Birthday: June 12 Blood type: A Height: 156 cm (I) Weight: 48 kg (I) Dosu is a genin from the Sound Village, and leader of his squad. They were under the direct supervision of Orochimaru during the chunin exams. Dosu uses a sound amplifying device on his left arm, called a melody arm, to increase the vibrations he makes when he hits something, causing damage to the opponents ears and messes up their sense of balance. He is the only member of his squad to advance to the second stage in the chunin exams after defeating Choji Akimichi. He showed dedication to Orochimaru's task of killing Sasuke Uchiha, but later became disillusioned after learning that Orochimaru had given Sasuke a cursed seal. Realising that he and his team were actually pawns used to determine Sasuke's worth, Dosu's outlook changed as he lost any and all loyalty towards Orochimaru and vowed to kill Sasuke for the purpose of undermining Orochimaru. Because of this, he would attempt to take down Gaara prior to the actual match to lessen the obstacles beforehand, a rather rash decision that cost Dosu his life. (Source: Naruto Wikia)