Rayuga

(らゆが;) also referred to by people who know of his bloodline as Rayuga Uchiha or Rayuga Uzumaki, for his direct line of family ties with the two infamous clans. Having been brought up as a Human experiment right from his birth, by his own godfather Shinzui Uchiha, Rayuga would later become a ordinary shinobi serving as an ambassador of his brother's village of Uzushiogakure to the Hidden Leaf Village.

Background
Child of the infamous Dark Slayer, Raido X and the Goddess of Flames, Mia Uzumaki, 's birth was surrounded by the air of drama. His father left his side to go on an voyage to find enlightenment when he was still in his mothers womb. Months later, when it was close to Rayuga's birthdate, Mia was kidnapped by Mayuri Kairo for the sole purpose of examining the inheritance of Raido. For six months after his birth, Mia and Rayuga were treated worse than animals, with Kairo only wanting to leave them alive for experimental purposes. Enduring the harshness for six months, Mia who had grown weak after childbirth never fully recovered. The mother son duo, where rescued by Shinzui Uchiha who was keeping track of Mayuri's experiments. Noticing the experiments done on Rayuga, Shinzui realized that a normal life for the kid was an difficult task. Rayuga was raised by Shinzui, whom he help with other experiments in order to exploit the full power of the Artificial Chakra Fruit. Rayuga grew fond of Shinzui and soon joined the elder Uchiha in his drinking sessions much to the annoyance of his mother. For Rayuga, the life in a hidden lab, wasn't one filled with the feeling of loneliness as he would spend time sparring against other human experiments. He would also accompany Shinzui travelling around the world learning new things. When he was around twelve years of age, Rayuga would go around town alone and play games with the local kids. Shinzui would tell young Rayuga about the heroic deeds of Raido and also knowledge on the kids older brother Shenron Uzumaki, who was a Mayonaka Pirate, at that time. When Rayuga was fifteen, Mia Uzumaki who had grown healthier requested to be left of to her village of Uzushiogakure in order to look after the people of her Clan who would be missing her. Rayuga decided to tag along with her, to venture into the Great Land. As the mother-son duo raced through the forest, Shinzui watched over their every step from the distance. Not soon had they reached half their journey, they were attacked by mountain bandits, who quickly knocked out Mia leaving Rayuga to fend off them by himself. For Rayuga this wasn't a task that he feared for has mountain bandits were child play to the kid who had endured the torturous abilities of the other human experiment. But little did he know that, these mountain bandits, were set up by Mayuri and Shinzui in order to test the wild capabilities of the young man. It was here for teh first time, Rayuga had activated the eyes of his fathers fame, the Sharingan. Rayuga soon overcame by the curse added by Mayuri's experiments. Driven with rage, Rayuga managed to make nearly kilometers of land barren by his destructive abilities. Until he was stopped by Shinzui. Rayuga, was brought back to the lab, where he spent the five-six years honing his skills and also learning new ones. He left for Uzushigakure years later, when he heard of his brother becoming the Kage. Rayuga also kept most of the time in Konohagakure where he worked to improve the relationship between the two villages.

Abilities
Being a descendant of the Dark Slayer and the Phoenix Queen, and then being trained by a legendary godfather would bring a lot of expectations out of a shinobi in the world that strives for competence. Rayuga was trained to approach warfare in a strategic manner and play with the wind, a style which Shinzui favored to use. As X Shin, Rayuga is currently the strongest experiment from Kairo's lab, only outmatched by the Seven deadly Sins. This powers renowned allowed him to be welcomed by two villages despite having no official academic shinobi qualification.

Dōjutsu: Sharingan
Able to fully utilize the mature Sharingan at the age of fifteen, Rayuga dispalyed a raw talent regarding its sage surprising the likes of his mother and Shinzui. With the Sharingan, Rayuga was able to create genjutsu, see chakra flow, incredible clarity of perception, and also the ability to read genjutsu. The Sharingan also aided him to predict the movement of his enemy, and counteract with a specific fūinjutsu seal. However, all these abilities weren't given to him without drawbacks, sharingan when active depleted Rayuga's chakra. However, the chakra depleted was insignificantly less and Rayuga was able to keep it active for long duration without any sign of chakra loss.

World Container
Unknown to many, inside of Rayuga's body is a vast endless dimension covered with nothing but darkness in all direction similar to the endless void of space. Within these dimension, a small subconscience part of Rayuga roams around as a king of the dimension, with the ability to change the landscape at will. For Rayuga it serves as a personal domain which his physical body cannot enter. The dimension, is the place where Rayuga stores many of his sealed artifacts for the use alongside his Mark of the Formless God. Another dimension among several other dimensions, this dimension as had curious visitors from several unexpected space-time researchers who, havng no other way but trapped by the man in order to fuel his own chakra needs, as Rayuga is able to sap into the chakra of the trapped including all 3 level of their memories and their lifeforce.. the trapped are restricted of their movements by entrapping in a cage of unknown metal and crucifixion for eternity.