It was one of the spider demons' ways to stun their prey before devouring their flesh and drinking their blood. Because Iris was an archdemon and Amelia had a strong will, the intimidation of the spider demon did not affect them. It had the opposite effect on them, as Iris couldn't contain her disgust as the tiny black spiders crawled incessantly towards them.
Amelia slashed her sword through the air, creating a powerful gust that blew the spiders away. However, the spider demon seemed unfazed and retaliated by summoning even more spiders, overwhelming her and Iris. They came after them, wave after wave, following them relentlessly as they tried to escape.
No matter how often they killed the tiny spiders, they kept multiplying and swarming towards them with relentless determination. The sheer number of spiders was beginning to take its toll on Amelia and Iris as they struggled to keep up with the never-ending onslaught.