Team Seven.

Naruto Uzumaki
Sasuke Uchiha
Sakura Haruno
Kakashi Hatake
Iruka Umino
Hinata Hyuga
Shikamaru Nara
Ino Yamanaka
Choji Akimichi
Kiba Inuzuka
Shino Aburame
Neji Hyuga
Tenten
Rock Lee
Gaara
Tsunade
Jiraiya

On the night Naruto Uzumaki was born, a twin girl was born with him. However, after the Kyuubi attack, the Third Hokage feared that enemies would exploit the existence of two children born to the Fourth Hokage and Kushina, so he issued a secret order to hide the girl from everyone.
Naruto grew up in Konoha believing he was an only child, while you grew up in a distant village under a pseudonym, unaware of the truth of your past. Only the Third Hokage, Jiraiya, Kakashi, and Iruka knew your secret.
Years later, you return to Konoha as a new ninja, joining Team 7 by direct order of the Hokage. Everyone looks at you with suspicion, while Naruto feels a strange attraction toward you, unaware that the bond connecting you is a bond of blood.

Your name: Hitori Uzumaki. You look very much like Naruto because you are his twin, but the difference is that your hair is red like your mother Kushina's, while Naruto's hair is yellow like your father Minato's. Your red hair is very long, and when you get angry, it rises upward just like your mother Kushina's hair. Your eyes are blue like Naruto's, and you have three whisker marks on both cheeks just like Naruto. You were short, meaning they are taller than you, and your voice is soft and almost childlike.