I have two characters, one the name inspired and the other isn't.

Matsuro Kanno:
The three ancient clans in the Shinobi nation as everyone knows are the Saritobi, Uchiha and Hyuuga. But two primary clans used to rule over the Shinobi Nation in ancient times. These two clans were the Kanno clan and the Kidoshima clan. These two clans were eventually destroyed due to thier inner political corruption (Kanno) and desire for power by any means necessary (Kidoshima) respectively. Basically, when the Kanno clan collapsed, it went to the Kidoshima clan for help. In response, the Kidoshimas, taking advantage of the stronger clan now weakened, took all the sons of the clan with fused chakra networks and spread them out throughout the world. This allowed the remnants of the Kidoshima to control the Kanno bloodline. Because of this, young and powerful Kanno shinobi raised by Kidoshima "lords" are few and sporadically positioned throughout. Because of the subsequent collapse of the Kidoshima clan, thier control was lost and ninja carrying the Kanno bloodline defected to persue thier own desires. Matsuro Kanno is one of these young ninja.
Raised by a Kidoshima patriarch, Matsuro was raised as a Red Moon assasin in the Moonlands, region of the shinobi nation ruled by warring factions of assasin tribes. The Red Moon is by far the strongest because of it's mixture of bloodlines. Matsuro was born AFTER the two great clans collapsed as with all the other young Kanno ninja around his age. Matsuro's origins are a mystery but it is known that he was born to a Kanno bride. His father is a mystery but Matsuro's unique abilities hint at the father being a Kidoshima carrying a rare trait.
Just as the Uchiha are known for eventually producing a ninja with the ability to activate Mangekyo sharingan, the Kanno's were known for producing Pyromancers, ninja born with two seperate energy sources, thier chakra network and a "ball" of intense and combustible energy tied to thier central nervous system. This naturally gives them more power than everyone else and the ability to perform unique ninjutsu. Accomplished Pyromancers can even access massive electrical charges and were referred to as "Lightning Rods".
The Kidoshima clan was known for producing unique abilities called "Shadow Wielding" or "Shadow Summoning". Because of the potency of this ability, this trait was extremely rare and soon died out entirely. This power gives the Kidoshima ninja the ability to control thier shadow, wiedling it as a weapon and even manifesting thier shadow as a seperate entity altogether. Just as the Rin'negan is the basis for all ninjutsu, Shadow Summoning is the basis for all summoning.
Whoever Matsuro's father was, he passed on the rare trait of Shadow Summoning. Therefore, Matsuro, as a Kanno ninja, can wield a powerful and terrifying shadow creature.


Personality:
Despite Matsuro's origins, he has a fairly calm and light demeanor. Though growing up in a dark world full of war, death and hatred, Matsuro was inspired by the unique powers around him to see the potential for what could be rather than what currently is. Fond of his fellow tribe brothers, Matsuro is particularly close to Asuka Temoura, the young and flighty assasin who had formed a bond with him in childhood and whom he taught ancient Kanno fire techniques. With an opposing personality, Asuka is lighthearted, free spirited and uncaring of the matters of the world. Desiring than what he had inherited when he killed the leader of the Red Moon Tribe and stole his secret technique, he set out to raise his clan's existance. Commanding instant respect and subservience because of his power, idealogy, objectives and friendship with his tribe mates, he has completely abandoned the Moonlands and taken the tribe to the Shinobi Nation to search out other powerful ninja to assist him and his tribe in building a larger entity. His true plans are to overthrow the Upper Kingdom (ruled by a monarchy) and abolish the political disparities between the Upper Kingdom, Middle Kingdom and Lower Kingdom. Once completed, he plans to establish himself and his clan as the new rulers, ruling over a united land with each member head of a divided province. Once that is complete, his ultimate objective will move on to the next stage.



The second person is Zakrin.