Log Horizon: The West Wind Brigade, Vol. 9

After a thief known as the Equipment Hunter suddenly appears in the city of Akiba and attacks people, making off with some weapons and armor, the chase begins for the members of the West Wind Brigade! Soujirou comes along for the ride, along with a mysterious person who looks just like him...!? But there's no time to ask questions-the Knights of the Black Sword have arrived, and an all-out war is about to begin!