Born into the famed Uzumaki clan of Uzushiogakure, Kushina lived most of her youth being caught-up in war, making her seek for a daily "peace". At a young age she was sent to Konoha and enrolled in the Academy.
Wanting to make a strong first impression, she proclaimed to her class that she would be the first female Hokage. The other kids laughed at her statement, and began calling her Tomato (トマト) because of her then-round face and fiery red hair. This prompted her to lash out and pummel the kids who teased her. This, in addition to her red hair flying wildly around her as she did so, earned her the nickname of Red Hot-Blooded Habanero (赤い血潮のハバネロ, Akai Chishio no Habanero; Viz "Red-Hot Habanero").
Mito comforting Kushina.
Kushina was eventually told why she had to leave her home of Uzushio and go to Konoha; because of her special chakra, she was to be the next jinchūriki of the Nine-Tailed Demon Fox. Kushina was terrified by the idea, but she was comforted by the Nine-Tails' then-current jinchūriki, Mito Uzumaki. Before the transfer was performed, Mito told Kushina that love was the only way to tame the Nine-Tails and overcome its hate. The love of Minato helped her do so.
Minato rescuing Kushina.
At some point in time, Kushina was kidnapped by Kumogakure ninja who wanted to make use of her special chakra in order to gain control of the Nine-Tails. As they escorted her to Kumo, she secretly plucked and left behind strands of her red hair to mark her trail in the hopes that someone would find her. Minato Namikaze, one of her former classmates that Kushina believed to be a wimp, was the only one to pick up on this. After rescuing her, he informed her that he had always admired her red hair. Since Minato proved himself to be anything but a "wimp" and liked the one thing she hated about herself, Kushina fell in love with him, now considering her red hair as the "red thread of fate" (運命の赤い糸, unmei no akai ito) that had brought them together.
As she grew up, Kushina became renowned for her beauty and unique ninjutsu style, including the fūinjutsu of her clan. At some point, Kushina married Minato and they conceived a son. During her ten-month jinchūriki-influenced pregnancy, they decided to name him "Naruto" after the main character of Jiraiya's first book. When Jiraiya asked if they were sure, stating that it was a name he had just came up with whilst eating a bowl of ramen one day, Kushina said that it was a beautiful name. They even approved of Jiraiya to be Naruto's godfather. Kushina also hoped that her son and her best friend Mikoto Uchiha's youngest son Sasuke would become friends in the future.
The Nine-Tails sealed within Kushina.
Because the seal keeping the Nine-Tails within Kushina's body would be at its weakest during childbirth, special arrangements were made. Kushina would leave the village in secret and give birth in a remote location. Minato would help maintain the seal and ANBU would guard the area. Soon after Naruto was born they were found by Tobi. Tobi killed all of the ANBU, Biwako, Taji, and took the newborn baby Naruto hostage, threatening to kill him as well. Minato was able to take Naruto back, but this gave Tobi the chance to escape with Kushina. Wishing to use the Nine-Tails to destroy Konoha, Tobi released it from Kushina's body. Since the longevity and vitality inherent to the Uzumaki clan allowed her to survive the extraction, though greatly weakened by experience, Tobi tried to have the Nine-Tails finish Kushina off. She was saved by Minato and brought to Naruto, who she stayed with while Minato went to help in the village's defence.
To stop the Nine-Tails' attack, Minato was forced to bring it to Kushina and Naruto's location, and both of them to its. While still weakened, Kushina used her diminished chakra to restrain the Nine-Tails. Despite knowing the trauma would kill her in her current state, Kushina volunteered to have the Nine-Tails sealed back into her body so that it would die with her. Doing so would also save the lives of Minato and Naruto; her thanks to them for giving her such a happy life. Minato suggested using the Dead Demon Consuming Seal on the Nine-Tails and sealing the rest of it into Naruto instead.
Minato and Kushina protecting Naruto from the Nine-Tails.
As this would also mean Minato's death, and consequently give Naruto a horrible and lonely life, Kushina naturally objected. Minato convinced her that it was for the best, and that doing this would also allow Kushina to see Naruto when he was older. When the Nine-Tails realised their intentions, it tried to kill Naruto, but both Minato and Kushina used their bodies to shield him. As Minato performed the sealing, and already at the point of death, Kushina told Naruto how much she loved him and gave him her best advice for the future; her final act in this world was to fill her son with as much of her love as possible. Minato then sealed the rest of their remaining chakra into Naruto, ending their lives.
Her family name was then given to Naruto by the Third Hokage, in hopes that nobody else would discover the connection between Naruto and Minato.
According to Jiraiya, Kushina was talkative and a tomboyish girl. Tsunade noted that much of Naruto's personality, as well as his ninjutsu style were inherited from her. Kushina also had a verbal tic: when flustered or excited, she would end her sentences with "(da)ttebane" ((だ)ってばね), a trait she hoped (unsuccessfully) she wouldn't pass down to Naruto (who ends his with "(da)ttebayo"). As an adult, Kushina was shown to be very level-headed and cheerful. Despite her calm and kind demeanour, she still retained her quick temper from childhood and occasionally lashed out violently at others if they angered her. She also was very fearless, as her friend Mikoto was slightly surprised when Kushina showed anxiety over labour pains. She loved her husband and newborn son very deeply and was not afraid to sacrifice her life to stop the Nine-Tails even throwing herself between the beast and her son when it tried to attack him.
Kushina as a child.
Tsunade pointed out that Kushina was a woman well-known for her beauty. She had a slender, but feminine build, fair skin, blue eyes, long bright red hair — a common trait amongst the members of the Uzumaki clan — with strands that framed both sides of her face and a black clip that parts her hair to the left. As an adult, she generally wore the same outfit consisting of a high-collared, sleeveless blouse under a long, loose-fitting dress. The blouses have been depicted in slate blue as well as white/blue while the dresses have ranged from tan to green. She also wore a dark blue band on her left wrist and pale purple standard shinobi sandals. In her childhood, she had a round face which, with her red hair, made her look like a tomato. Her attire was a yellow kimono with a short-sleeved mesh shirt with a green obi dark blue shorts and brown standard shinobi sandals. In her adolescence, she wore a short-sleeved, tan kimono-like blouse with a dark embroidered border, held closed with a black coloured obi, a dark skirt and stockings that stopped at her thighs along with the village's forehead protector and brown sandals.
Kushina restraining the Nine-Tails with her chakra chains.
Though she stated that she was never originally any good in using ninjutsu, Kushina apparently became famous for her strong-willed spirit and her unique style of ninjutsu. In her childhood, she showed deceptive strength and also to be a fierce barehanded fighter, able to swing around and pummel several kids "half to death" for teasing her. Kushina also possessed an unusual and special form of chakra, which made her well-suited for becoming the Nine-Tails' jinchūriki. She was able to produce chakra chains from her body with which she could restrain others. The chains were strong enough to hold down the Nine-Tails. She could also form a barrier in conjunction with these chains.
As a member of the Uzumaki clan, she was blessed with an exceptionally long potential lifespan and a life-force so strong that she survived the extraction of a tailed beast minutes after giving birth, though she was left severely weakened. She also had great skill and knowledge of advanced fūinjutsu, which she would teach to Minato.
Part II Edit
Confining the Jinchūriki Arc Edit
Naruto meets Kushina.
Sixteen years after having the Nine-Tails sealed into his body, Naruto finally tried to gain control of the beast. When he was almost overwhelmed by the Nine-Tails' hatred, Kushina appeared before him. Naruto initially believed that she was the Nine-Tails in disguise, so she hits him in the head. She then apologised for her short-temper, telling Naruto that she hoped that wasn't a trait he inherited from her. Picking up on this and realising Kushina was his mother, Naruto started to cry and embraced her. His happiness halted the Nine-Tails' spreading influence and Kushina used her chakra chains to restrain the Nine-Tails and give them a chance to talk. As the chains emerged the Nine-Tails was surprised after recognising her chakra.
As they speak, Naruto compliments Kushina on her looks and expressed envy for the fact that he had not inherited her hair-colour as well. Kushina was glad to hear this, as it meant Naruto took after Minato by admiring her hair. Though embarrassed when asked on the subject, Kushina told Naruto how she met Minato and how they fell in love. She told Naruto that she loved him too, which gave him the resolve to try and tame the Nine-Tails again. Kushina used her chakra chains to help him and Naruto ultimately succeeded. She congratulated him and said that she could now join Minato, making Naruto somewhat visibly saddened that she had to go.
Kushina thanks her son before fading into the afterlife.
With her remaining time she told him about the Nine-Tails' attack on Konoha and how the beast came to be sealed within him. After her story was done she apologised for placing such a burden on him. Naruto replied that it didn't matter, for even though she and Minato weren't there to show their child love, he knew that they had loved him long before the Nine-Tails was sealed into him; thus, he didn't blame her and Minato for anything and was happy to be their son. Overjoyed, Kushina tearfully hugged Naruto, and thanked him for letting her and Minato be his parents, before she completely faded away to be with Minato in the afterlife.