The twin Hatchlings

Hana and Keiko Yashagoro are both the children of Orochimaru the Sanke sannin and Aimi Senju the granddaughter of Second Hokage. They grew up in the Hidden sound village with both of their parents, until their mother died when they were only three years old. They were left living with their father and his right-hand man Kabuto.
However one day they are sent to the Hidden leaf for a mission that was given to them by their father.