Cassandra Cain, a highly skilled and trained fighter, takes on the mantle of Batgirl and adopts the name "Kasumi" as she becomes a fierce martial arts assassin. She later joins the Justice League Elite Task Force, utilizing her unique skill set to take down some of the most notorious villains in the DC universe. With her unparalleled agility, combat skills, and unwavering determination, Kasumi proves to be a valuable asset to the team.