The Joy has been given a mission by the U.S. to neutralize a dangerous swordsman by any means she sees fit. Kenshin is confronted in flat plain and manages to spot her and call her out, forcing combat to begin at around 20 meters.
Sceneario 1:Both are in-character and The Joy is attempting to knock Kenshin out and permanently disable him.
Scenario 2:Both are in-character but The Joy is going for the kill.
Scenario 3:Both are bloodlusted.
Kenshin is equipped with a lethal blade in scenario 3, otherwise he is using his reverse blade. The Boss has her knife and Patriot gun, but will only shoot to harm in scenarios 2 and 3 to prevent the chance of killing Kenshin, this does not mean she can't use it to perform other tasks like forcing Kenshin down a certain path or attack plan.