Ruka Uchiha

Ruka Uchiha (うちはルカ, Uchiha Ruka), was a kunoichi of the Uchiha Clan during the Warring States.

Background
Having grown up on the battlefield as a member of an infamous clan, Ruka was considered to be an exceptional shinobi of incredible prowess with a Sharingan that was considered to be one of the strongest of her generation.

When she was fourteen years old, Ruka had been drawn into a battle against Ayame Senju - the paternal aunt of Hashirama and Tobirama - and was killed as a result. Sen, her older sister, had awakened both the Sharingan and Mangekyō Sharingan after learning of Ruka's death.

Appearance
Having only been seen in a picture, Ruka was described as having shoulder-length black hair which parted to the left side and had locks framing both her forehead and sides of her oval face. Her eyes, a brilliant onyx, were sharply shaped and pointed downwards with long, thick and charcoal eyelashes which brushed against her high cheekbones.

Overall, Ruka was thought to have aristocratic features.

Abilities
Despite her young age, Ruka was known for her ocular prowess and deemed to have one of the most powerful Sharingan of her generation.

Ninjutsu
Ruka possessed the nature elements of Earth, Fire, Lightning, Water, Yang, and Yin Release.

Trivia
Ruka (ルカ) means 'Lapis Lazuli' and her family name "Uchiha" is another way of pronouncing "uchiwa" (団扇, paper fan), which is actually the Uchiha clan's symbol. Uchiwa can be used to fan flames, making the flame hotter — referring to the fact that the Uchiha is a clan of Fire Release users