The "soldier" of the army was called Alaina. She wasn't biting Herring's head anymore and had already been hung on the meat hook by Mia.
As the mother of the Black Mist Army, one of the core consciousnesses of the Nightmare Seed of Black Mist, Alaina could absorb the flow of emotions in the Nightmare Dungeon and change it into her power.
Since she wasn't a picky eater and required a balanced diet, she ate a lot. Fear was the emotion she consumed the most and was also the one that maintained self-supply for the army. And yet, if they took in too many negative emotions like fear… they would be poisoned.
Although the fear from Herring's body was sweet, Alaina realized that she shouldn't overeat. However, when Alaina released her mouth, she found that a new flow of emotion had appeared on Herring's body—excitement.
This made Alaina very confused.