Name: Y/n Shabana

Romaji: Shabana Y/n

Species: Human (Formerly)

Demon

Age: 12

125 (Chronologically)

Birthdate: April 13th

Sex: Male

Height: 160 cm

Kekkei Genkai: Mark of the Demon

Classification: Medical-nin

Sage

Sensor Type

Affiliation: Twelve Kizuki, Konohagakure

Clan: Shabana

Family

Gyutaro (Older Brother)

Daki (Older Sister)

Nature Type: Water Release, Earth Release, Fire Release, Wind Release, Lightning Release

Background

Y/n was born in the Entertainment District's Rashomongasi (Lowest Caste) area, where only sick prostitutes, geishas, and oirans who could no longer work in the brothels were sent and left to die. His birth mother was a prostitute there, having given birth to his elder siblings a few years before.

Y/n was primarily raised by his elder siblings since his mother passed away from the disease while she was pregnant with him. His elder brother Gyutaro noted that, even as a young child, Y/n's appearance was somewhat familiar to his elder sister Ume, with having beautiful features. Both siblings with their beauty, Ume, were finally chosen to work in one of the Entertainment District's High-Class Brothels.

Ume began receiving proper education, was taught the proper skills, and fed the finest foods in her training to become an Oiran, and even before her training was even completed, Ume had already begun making a fortune by attracting many suitors and customers to the brothel, due to her beauty. At the same time, Y/n worked at his young age to possess such beauty making more people come towards them. His elder brother began working as their "Collector" and would collect money and debts owed to the brothel.

However, this all came to an end when Y/n and Gyutaro found Ume. Tied, bound, burned alive, and left to die in a ditch. Both began to hysterically panic upon seeing her near-death state.

They were then discovered by a samurai that was one of Ume's customers, along with the Manager of the House she worked in. The pair attempted to kill both Ume and Gyutaro while attempting to kidnap Y/n.

However, it only led to being killed by both Y/n and his brother instead, who then picked up his sister's charred body, and Y/n follows as they around town in search of help. The struggle turned out to be in vain, as it realized that no one would help them.

Y/n has already collapsed as Gyutaro carried him, but he was also about to collapse from exhaustion and fatigue from his severe wounds. Doma, who was Upper Rank 6 at the time, happened upon the siblings while wandering the district in search of beautiful Geishas to devour. Taking pity on them, he offered to help the pair, claiming that it was because he was a "nice guy".

Y/n possesses strong powers as it not only impressed his siblings but also impressed the Kizuki. Muzan Kibutsuji, the chef, was also impressed as during Y/n's fifth anniversary he was now a member of the Kizuki. Apart from his siblings, he got along well with the other members, despite his attitude didn't have the similarities of a demon.

But his attitude caught Muzan's attention as he was annoyed by it.

One day, Muzan decided to send Y/n to Earth alone for a mission, in a dangerous region. Back then Y/n was young as he was naïve, not caring about his surroundings, or who was behind him. Suddenly the ground started to shake under Y/n, falling into a great ditch. He cried at the thought of him dying as he wouldn't see his siblings.

But he then realizes that Muzan knew about the area as he concluded that he was on a suicide mission.

His true power manifested for the first time, sending a strong ray to space. As he was about to reach the end, a man with white hair and white eyes appeared he saved him. However, because of his newfound strength, he freed himself from the man's grip and fell into time-space.

After some time, he came across planet Earth, but a different one from his world. The world of ninjas.

Personality

Y/n displays a kind, friendly, and cheerful demeanor, always having an easygoing smile on his face. However, his outward behavior is shown very quickly to be a façade. He enjoys teasing others, to the point of being rather sadistic about it.

Despite his relaxed exterior, he can be rather cruel towards his enemies, which leads to him developing a small habit of sarcastically complimenting a person's best traits and then finishing them off.

Another note is that because of his nature of growing up, he isn't well known for the term "Love".

Despite his negative traits, Y/n possesses a genuine, strong love for his older siblings. Having a passion for the three of them to live the rest of their lives in peace. However, his love for them does not stop him from screaming and insulting them when they frustrate him.

Appearance

Y/n is known for having effeminate looks. He possesses eyes that are noted to be red. His hair is black with a green ombre at the bottom and is styled in a ponytail with center-split, ear-length, voluminous curtain bangs that flow down to frame the sides of his face. Despite Y/n having some feminine looks, he gains a noticeable muscular body.

Outfit

Y/n's outfit during his time at the Academy consists of a fitting two-toned light grey and purple kimono shirt with billowing, overlong sleeves, tied by an obi belt, and a pair of black shorts. In addition to his outfit, he wears black long socks and black shinobi sandals.

Upon mission or traveling event, his outfit changes to a black two-piece outfit. His top is a black sleeveless shirt, along with pattern armbands. Lowering down he wears a pair of black shorts it reaches his upper thigh. As a belt, he has a red pattern Obi wrapped around him with a golden string tied around it.

For shoe wear, he wears a pair of thigh-high shinobi sandals. From the ankle to the upper end, it has the same pattern that his Obi and his armbands have. To keep some items, he has a pair of ninja tools on the side of one of his legs.

When Y/n transforms into his demon form, he has a bigger, taller body. He grows a pair of fox ears with an irregular crack pattern and sports a demon crest on him, and his hair will change to white with green color at the bottom. His eyes will change as his red eyes will have more appeal, with his pupils being engraved with a kanji.

He wears a unique and stylized variation of clothing inspired by the colors of a Shinto priest's traditional outfit.

Abilities

Overall Abilities: As an Upper Moon, Y/n is an extremely powerful demon with over a century's worth of combat experience under his belt, having killed and devoured many Hashira in the past.

Extrasensory Perception: Y/n possesses extraordinary sensory abilities which allow him to detect things outside the normal range of perception, as shown when he could perceive attacks even from places he is not looking at, allowing him to nullify the effectiveness of sneak attacks.

Flesh Manipulation: Like all demons, Y/n possesses the ability to manipulate his flesh to a high degree. Most notoriously, he uses this ability to create an extremely durable and sharp katana. Because of this, his katana can never be destroyed as he can regenerate it as he would with normal wounds.

Sword Manipulation: Due to his katana being made of his living flesh, Y/n can easily regenerate parts of the blade should it be destroyed or damaged as he quickly as healing his body.

Immense Durability: As an Upper-Rank demon who has assimilated a huge amount of Muzan's blood, Y/n has an exceptionally durable body.

Immense Speed & Reflexes: Y/n possesses inhuman movement speed and reflexes, being able to move so fast he appears to teleport. Due to their rankings, it is strongly suggested that Y/n is faster than Gyutaro.

Immense Regeneration: As an Upper-Rank demon, Y/n possesses one of the most advanced and powerful regenerative healing factors in existence.

Immense Strength: Y/n possesses immense physical strength.

Indomitable Will: Solely because of his goal to protect his siblings, Y/n possesses tremendous willpower and an indomitable spirit.

Menacing Aura: Y/n possesses a menacing and overwhelming presence that startles many, even Upper-Rank demons, they'll shiver as if a ghost from their dark past was whispering in their ears.

Tactical Intellect: As a trained swordsman by one who has existed for nearly five centuries, Y/n has experienced countless battle situations and threats that he has learned to overcome. Adapting to many enemies' special and unique fighting styles and tactics nigh instantaneously.

Unlimited Stamina & Endurance: Y/n possesses absolute and infinite stamina and vitality, never tiring and always remaining in optimal physical and mental condition all the time as well as being able to endure waves of onslaught as if it were nothing.

Fighting Style

Swordsman Proficiency: Y/n has displayed mastery in his swordsmanship in combat. As an Upper-Rank demon, he has lived for over a century and has refined his skill to the point he can surpass the Hashira, the strongest swordsman in the Demon Slayer Corps, in close-ranged combat.

Blood Demon Art

Spiritual Shogun: Y/n's Blood Demon Art allows him to summon forth animal spirits, that can deal elemental damage. In certain things, it's known for being a fox spirit, but there are cases that he releases other animal spirits. It also depends on the animal where the elements would change. He can great these spirits from his flesh and blood and can be used in various scenarios. It is implied that Y/n doesn't run out of blood due to his regenerative abilities, giving him a virtually infinite source of blood to fuel his techniques. In combat, he usually summons them to take care of his enemies as not only can they move on their own but have their human-like form that can travel at immensely fast speeds to attack his opponents. Y/n is also capable of freely manipulating these blood spirits at will, having them be his eyes and ears as they can be used for spying on others.

If needed, Y/n can move swiftly, leaving a Spiritual Blood Mark behind. These marks can strike one nearby opponent. When there are other Spiritual Marks nearby, their level will increase, boosting the attack.

His spirit has a unique ability that allows him to store objects, usually, humans he wants to eat. He traps them inside the spirits by transforming the objects he wishes to store into a dimensional Sakura tree branch. This allowed him to be stealthy with his movements, as any opening or pathway that is wide enough for a spirit to fit in is one that he can take.

Sentient Flesh Fox: Y/n creates a fox spirit with cognitive functions as well, to guard and protect his "store tree" where he keeps food. The fox also has a secondary purpose, which is to capture anyone who poses a threat and to gain information about them. Y/n can also telepathically communicate with his spirits, giving them instructions on what to do.

Among summoning spiritual strikes, his true Blood Demon Art is the Spiritual Blade. Gathering and using several drops of blood, Y/n unleashes the Spiritual Blade and deals more lethal damage, while using the blade in combat for a certain duration afterward. The damage by the blade's attacks is the same as the rest of his Demon Art.

Stats (1-10)

↳ Strength: 8

↳ Speed: 9

↳ Taijutsu: 7

↳ Teamwork: 6

↳ Ninjutsu: 10

↳ Genjutsu: 9

↳ Chakra Control: 10

↳ Intelligence: 10

Trivia

When using his Blood Demon Art, his chakra will form a certain number of tails. Depending on the certain animal he's familiar with, he'll gain a tail from 1-9.

The attire Y/n wears is an inspiration for Daki and Gyutaro's Demon Slayer Au outfit.

Y/n's demonic attire is an inspiration for Daki's outfit and Yae Miko's outfit from Genshin Impact. Just with more cover than Daki's outfit as it's a shrine outfit.

The Blood Demon Art is an inspiration for Douma, Kokushibo, Raiden Shogun, and Yae Miko.

⳾*⑅*❀⑅*❀⑅*❀⑅*❀⑅*❀⑅*⳾

This bio was helped by this amazing person @/Love_BorutoUzumaki, so make sure to give them some praise for helping me make this. These photos don't belong to me.