He is able to form various weapons in Rock 's arsenal , such as a blade or Rock 's infamous Rock Cannon .
Ron is a serpent - like creature who serves as Black Rock Shooter 's companion in the manga series , Black Rock Shooter : Innocent Soul .
Ron is able to form various weapons in Black Rock Shooter : Innocent Soul 's arsenal , such as a blade or Black Rock Shooter : Innocent Soul 's infamous Rock Cannon .
Ron is a serpent - like creature who serves as Black Rock Shooter 's companion in the manga series , Black Rock Shooter : Innocent Soul .