Kidomaru is born in Iwa with the Explosion Release kekkei genkai along with his own kekkei genkai. He becomes est friends with Deidara in the Explosion Corps, and is confused by the betrayal by the blond to his village. Tracing his footsteps and even using the kinjutsu that Deidara used, he will then do whatever it takes to track down the mad bomber and return him to his village.