Yusa: his dad was a Uchiha in the black ops (still wondering why they were chosen for that) and his father once stumbled upon a women on one of his missions. They soon fell in love after a few weeks and had a child (just so you know, he didn’t know she was a Yuki), what she didn’t know that he also had a wife in the home of Uchiha who also had a child, he was exiled when they found out so he lived with the Yuki in secret, a month later the war happened and he was taken in by Kakashi once he found him. When he was old enough, Kakashi taught him how to use lightning Release and ,when Kakashi wasn’t paying attention, he would go out into the forest to do training and met his sister there doing the same thing. To Yusa’s surprise Kakashi was watching by a tree and when they were 13 he taught them how to use the Chidori (the reason they didn’t enter the chunin exams), with yusa learning about his past from Kakashi.
