Gun x Sword

Van, a swordsman on a personal vendetta, travels through the city of Evergreen where he meets Wendy Garret, a young girl searching for her kidnapped brother. The city is under attack by bandits, but Van initially refuses to help, citing it's not his concern. After encountering the bandits and learning they're connected to his primary target, The Claw Man, Van teams up with Wendy and continues their quest.