Uchiha Kyodai

The Stone that the Builders Reject Becomes the Cornerstone

Kyodai remembers the first time she met her cousin Madara. She had almost been three, and it was Madara's third birthday. That was when he got his name. For surviving infanthood. She remembers him confusing her with her twin sister. They both had a single green eye, and neither of them had names yet.  He liked her sister better. Kyodai was fine with that, she didn't like Madara very much either. Or anyone really. Just her siblings and her father. Yuei, her mother, didn't like Kyodai and her sister much, but they were tolerated. They didn't like Yuei much either, no matter how badly they craved her love. Three days later, Kyodai saw Madara again, on her third birthday. Yuei named her sister Kyodai. She died of a heart attack a few seconds later. 

Kyodai lost an important part of her that day, and she took her sister's name, as she was the survivor, and it was rightfully hers. Yuei stopped tolerating her. Kyodai stopped craving Yuei's love. She took care of her four younger brothers while Yuei grieved and Kazuokei was away. Kyodai would take care of her family, protecting them from all things, as she had failed to do before. Kyodai gained her passive Sharingan.

In case you were wondering, Kyodai's sister had Kawasaki disease. This caused an aneurysm in the blood vessels leading to the heart, guiding blood away from her organs. This resulted in a heart attack. Very sad. Rare, but technically possible. In real life, Kawasaki disease can be treated easily. It usually only lasts a few days to a few weeks. Although, in this fic, even if she showed all of the symptoms, in this era they probably didn't have to much info on diseases, especially rare ones like Kawasaki. For the sake of clarification, K1 (Kyodai's sister) definitely had a fever. However, she made it to the three year mark, and some considered this a good omen for her continued health. Well. Up until she died. Yeah.