Hakuja and Mizuchi are the children of Orochimaru, the snake Sannin, and Emiko Senju, the cousin of Tsunade Senju. They are both determined to make a legacy of their own and not just be seen as the children of two legendary shinboi. (Minato Namikaze generation ) 

This is going to be a co-written story with @Orochimaru_Wife23