6 no Trigger

Tsubame is an assassin-for-hire who is, in fact, four distinct people, each with a different way of killing. Penguin is a calm young child with exceptional skill as a rifleman, while Washi (Owl) carries a huge shoulder-mounted Gatling gun and fights in the name of “justice.” Suzume is a charming young woman who uses two guns, and Tsubame favors enormous rifles and hand-to-hand combat. A mechanical arm allows one of the four to take control when it is switched. How Tsubame came to be this way, and what lies behind the arm, remain mysteries.