Hikaru noted the fact that Mokai was an illusion and not real, and proceeded to ignore him. If he had been real, she'd have killed him. But at this point, he was just a spell that didn't matter. Giving a mental command for the Virus to proceed to infect the dimension with part of its self, Hikaru commanded with telepathy for the other part to follow.
After giving one last glance of revulsion to Kurai who lay on the ground ... doing stuff that Hikaru had never even seen, Hikaru stepped into the circle with the Aralang's and group teleported them them all away, leaving Kurai.
Kurai on the other hand was ...enjoying herself, despite the fact she was in pain worse than death, Kurai laughed, a small giggle, to a loud cackle, and eventually full out psychotic roaring.