Sumaro Daisuke

A ninja from Iwagakure (Village Hidden in the Stones), he is always at his twin brother Daiki's side in battle, as is a result of

Background
Daisuke was born literally connected to his brother. Using A-ranked medical jutsu, doctors were able to separate the twins. Years later, they both failed miserably in the Ninja Academy, until they discovered that their jutsu only worked when they were using it with the other brother's help. When they finally gradutaed the Ninja Academy, they joined the first ever five-man rookie ninja squad.

* More to be added later*