The brawl did not remain in the far-left section, because brawls never have the decency to stay where they begin.
The swordsman had hit someone, and that inmate had answered by hitting the nearest person to him, who was not the swordsman. That nearest person hit the person beside them out of reflex and indignation, and the cascade ran through the canteen in the familiar way arguments become fights when the room is crowded enough and the stakes are low enough that no one feels obligated to be sensible.
The three guards at the reached the origin point quickly.
Two of them got hands on the swordsman. He had no blade mounts in here, the hardware was offline like everything else, but he was internally reinforced, dense, and he did not go quiet when someone grabbed him.
He threw one guard sideways into the table.
