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Kazuko Ryuketsu (流血和子 Ryuketsu Kazuko) was a Ryuketsu Clan member that belonged to Team Zero, one of the first and deadliest teams formed in the Root. She was respected as the world's most powerful Kenjutsu user, wielding the Blood Sword Murasame that was feared to be able to single-handedly bring down the Seven Ninja Swordsmen of the Mist of her time. She was also later known as the first Dragon Slayer of her clan, having to perform such feats to save Konoha from The Blood Pond Hell.
But, within her home village, she was loved more for her passions in fūinjutsu and barrier-ninjutsu. She was their greatest specialist that protected her village against natural disasters, adversaries, clan disputes, tragedies and ultimately, even against her own kin.
Appearances[]
Because Kazuko’s senior clan members such as Akane, Shizuhiro and Shizuku had such strong appearances (whether it was considered attractive or not), many were curious to how she would grow and develop physically as a woman.
Face and Hair[]
Kazuko grew to own a distinctive androgenous look from a young age. Her looks as a child was endearing, but as she became older and having a different type of physical charisma from her upperclassmen, she was sometimes viewed as an eccentric oddity, seeing how often she was mistaken as a ‘pretty guy’ when she was not. Kazuko was by no means ugly but many hesitate to out-right name her as attractive, so the subjectivity of her physical appeal was more obvious than others.

Kazuko Ryuketsu.
Although dubbed expressionless on most days, her facial characteristics are extremely soothing and pleasant to look at, even more when she smiled or laughed. Despite having a neatly symmetrised diamond-shaped face with thin eyes, nose and lips, Kazuko generally lacked a harsh tone to her features, rather comforting as opposed to intimidate like Shizuku did. Kids were also naturally drawn to her because of her glossy pink-toned blonde hair and calmative voice. Even as Kazuko got naturally hardened by the nature of her military professions, there was still a certain down-to-earth quality that stayed with her. Her physicality was easy and graceful, making others very much more comfortable in approaching her compared to some of her other kinsmen.
Body[]

Kazuko's Upper Frame.
Kazuko fitted the ideal standard body type for an average female, because she was of a decent height and prettily molded after a classy hourglass shape. She was also an ectomorph, and so did not suffer any major weight fluctuations throughout her life. She stayed incredibly lean, which was boring to some that preferred meat in women. However, unlike Shizuku, it was not attributed to crazy inherited physical genes, but lifestyle choices and circumstances. With all the exertion that came with being an active-duty shinobi, it was hard for her to gain any weight and she disliked strong tasting foods. Compared to others, Kazuko ate to live rather than live to eat, preferring to sleep over consuming extra calories.
Background[]
Pre-Academy Days[]

'How did you know who I am?' Danzo asked curiously. Kazuko shifted her tiny head towards the History section. 'You were in some of the books.'
Kazuko was born into a civilian Ryuketsu family whom were one of the most respected intellectuals in Konoha. They were known to be very well connected professionally and personally to the Yamanaka and Aburame Clans due to their academic specialities: her father was an entomologist while her mother was a neurologist. Because of that, Kazuko was the recipient of very promising erudition genes; but her parents had not expected her to display chakra control as well, and a rather stunning sense at it. Despite this, her parents did not enroll her into the Academy, knowing the dangers and hardships of being a Ryuketsu ninja. Their shinobi relationships kept it discreet out of their requests; but her skill was eventually witnessed by Danzō Shimura where at the age of three, utilized chakra flow to slice paper out of boredom when waiting for her mother at the waiting area of the library. Her parents were flattered by Danzo's belief in their daughter’s high potential as a shinobi, furthermore so humbled by their friends’ votes of confidence and promise in her. Ultimately, they were convinced by these two things only: that Danzo would watch over her as a member of the Root and that upon explanation, Kazuko actually displayed genuine interest in those prospects herself.
Although her parents had agreed to let her be enrolled into the Root, they also had numerous conditions that they required Danzo to meet before yielding to their contractual agreements: one of them still necessitating some form of Kazuko’s participation in their village’s regular ninja academy. It was perplexing and amusing for Danzo at the same time: they were basically insisting on acquiring silver despite already having pure gold cemented in their name; because his personal stamp of interest and recognition was worth thrice over any perfect academy grades in Konoha’s shinobi world. In the end, they agreed on a part-time attendance basis for her so she could better juggle Root training simultaneously. It was a stressful decision for any child to handle, but Kazuko was thankful for it down the line because the presence of other children at that age played a huge positive role in building her observational and socialization skills; as well as her ability to cope with the isolation and stress that came with being a Root individual.
Academy Days[]

Kazuko during her Academy Days.
There was no shortage of prodigies, geniuses and highly talented performers in the Academy’s history; but none as fondly reminisced over as Kazuko was because of how uniquely well her amiability balanced out her introverterted characteristics. She certainly preferred to keep to her books, but never once responded snobbishly towards others despite being blessed with breathtaking intellectual and combative brilliance. All of her teachers and peers were sad (but not surprised) to see her graduate early once her skills were procedurally corroborated to begin her full-time shinobi career in the Root.
The Death Of Minato's Parents[]
Kazuko was amongst the spectators that witnessed the body cleanup of Minato’s parents, although it was coincidental rather than official as she happened to have accompanied her parents to do groceries when they joined the crowd. She was still a small child and had not yet forged any relationships with her famous kinsmen. But even then, her contemplative eyes surveying the scene and potent chakra signature was enough to be noted by Shizuku, however brief the notice was. The encounter was never brought up or discussed because of the pain surrounding it, but one can be sure on Kazuko's stance regarding it by going through her rejected pile of mission proposals. The clear refusal to involve herself professionally or personally in the matter spoke volumes of her respect towards the unspoken boundaries, Kazuko would rather risk the career safety of her own than place her upperclasmen in danger.
Personality[]
Abilities[]
Chakra and Physical Prowess[]
Kenjutsu[]
Ninjutsu[]
Fūinjutsu[]
Barrier-Ninjutsu[]
Blood Release[]
Wind Release[]
Intelligence[]
Relationships[]
Biological Parents[]
Team Zero[]
Fū Yamanaka[]
Torune Aburama[]
Social Circle[]
Shizuku Ryuketsu[]
Shizuhiro Ryuketsu[]
Minato Namikaze[]
Kushina Uzumaki[]
Mikoto Uchiha[]
Other Konoha Individuals[]
Yamanaka Clan[]
Inoichi Yamanaka[]
Yuen Yamanaka[]
Akane Ryuketsu[]
Danzō Shimura[]
Quotes[]
Trivia[]
- Her name 'Kazuko' (和子) means 'one, harmony, child', a symbol of her life's mission to contain the good and repel the harmful for all whom she treasured. It also clearly reflected the reason behind her choice in mastering fūinjutsu and barrier-ninjutsu.
- She was the first non-Yamanaka individual to have led the Konoha Barrier Team.