"Damn. That. Nino!" Zero Three yelled amidst the black ants. "How dare she leave Doctor's side! If I knew she couldn't properly guard him I would've stayed behind instead!"
She was holding one of her triangular shields in one hand swinging it at the giant ants. Its edges were a bit blunt so instead of cutting it crushed the monster's carapace before tearing through the insides. Apparently the damage was just too much so each attack always ended with the monster turning into a cloud of smoke.
Three was quite furious. After hearing that Nino had left her post by the Doctor's side, which left him alone with Ichigo, who didn't have much in terms of combat abilities, the young Valkyrie started hacking at the black monstrosities hoping to finish her side of the job fast enough to go back.