Naruto Uzumaki:

Naruto is younger brother of fraternal twin. When Naruto born, nine tails chakra is invaded his body which makes his body weak and unable to use chakra. Since he is not able practice chakra, supports Nurumi from behind. After his bloodline awakens, his chakra resources increase by a large amount and has natural affinity to Uzumaki style fuinjutsu. His granduncle compares his natural affinity to fuinjutsu is similar to Uzumaki clan first leader.

Nurumi Uzumaki:

Nurumi is eldest sister of fraternal twin. Due to rumour, everyone views her as demon fox. So, lord third hokage decided to keep the relation of twin secret to keep Naruto from the discrimination. But Naruto and Nurumi becomes friends and then self-proclaimed siblings. She is little dumber to understand any techniques and only Naruto is able to make it simple for Nurumi to understand.

Minato Namikaze:

Minato is a father of Naruto and Nurumi, fourth hokage of Konoha. He is good at using fuinjutsu and ninjutsu. His nickname is "Konoha's flash" because of flying thunder god jutsu. Died by sealing part of nine tails into Nurumi.

Kushina Uzumaki:

Kushina mother of Naruto and Nurumi. She is jinchuriki of nine tails before Nurumi. Due to her Uzumaki life force she is able to hold even after fatally wounded and later rescued by her uncle, Kenji Uzumaki. Later she woke up after Naruto breaks the seal and transferred his life force to her. later she hides her identity along with her uncle and becomes guardian for Nurumi, who is one of the two survivors Uzumaki clan.

Kenji Uzumaki:

Kenji Uzumaki is younger brother of Uzumaki clan leader and uncle of Kushina Uzumaki. His is regarded as a genius as he mastered most of clan techniques in early age. He has a wife and daughter, later killed due to fear of him. From then on, he excluded from clan activities and becomes attached to Kushina, who has same age as his dead daughter.