Yasukaze Motomiya

Después de que su empleador les ordena compartir una habitación, dos chicas de secundaria, también asesinas mortales, ven su relación amargada.

Feeling unhappy with his gun, Jigen is looking for the world’s best gunsmith. He finally finds out that Chiharu, who runs a watch shop, is the person he’s been seeking. Then, Jigen meets Oto, who comes to Chiharu’s shop looking for a gun. Jigen finds out about Oto's secrets and the mysterious organization that’s after her. After Oto is kidnapped, Jigen gets into a desperate battle to save her.