Having been asked to lead the way, the Xu brothers were not only unafraid but actually delighted.
Finally, they could showcase their abilities and worth in front of Yang Fei.
So, the subsequent scenes changed.
Previously, it had been Yang Fei brandishing the Ghost Head Blade and chopping down foes at the forefront; now, it was the Xu brothers who led the charge, flinging poison at the sight of an enemy.
In the relatively closed-off space of the building, the poison experts, the Xu brothers, were like devils descending from hell itself, unmatched by anyone.
Of course, they occasionally encountered some skilled soldiers who knew how to hold their breath.
But the combat power of these individuals was mostly at the level of the Energy Transformation Realm; even those who were Late Stage Energy Transformation Third Rank stood no chance against the Xu brothers.
Overwhelming power!