As you can see compared to the human Warriors the number of those Abyss humans was greater and because of this, a situation was created like this. Even though those human Warriors already killed most of the Abyss humans, they still needed to kill the remaining one and it was very hard for them.
Most of the Warriors were already seriously injured and because of this, it became harder for them to kill all those enemies.
The captain of the human fighters was fighting the captain of those Abyss humans. Both of the leaders are fighting while their comrades are also fighting with each other.
The human leader quickly swings his sword at the enemy, but he also swings his ax toward him. Both of the weapons clash with each other and an impact was created by that. That impact was powerful enough to send both of the warriors backward but they quickly stabilize themselves and once again attack each other.