... He pulls out a shoot of bamboo and pulling a string a flare shoots out of it. However those on the ramparts, before even seeing the flare, just seeing the commander maneuver in such a way, turn around and quickly knock their arrows.
With their arrows knocked, the soldiers on the ramparts immediately release their arrows in a coordinated square shape, so that even if the enemy moved they would be hit at least a bit. As this occurs, the soldiers below draw their swords and immediately take a defensive formation with every other one of them in an attack position. Also due to their current spacing they are less likely to hit each other by accident.
The assassin still running forward ignores the arrow, and keeps his focus. Pulling out one short short and one dagger, the assassin closes in on his target. Although only a short distance from the princess, the person is covered in arrows yet not ceasing to move nor even bleeding.