If Aeternus chooses to pledge to a high-rank demon, he won't need to hunt other demons. Viron himself is pledged to one. He stays in one of the fortresses in the domain of high-rank demons and he would be willing to take Aeternus there. But anything can happen on the way there. Any unfortunate event can befall Aeternus and render him unable to reach the fortress. Unfortunate things happen in the abyss plane every time.
He was thinking about how to trick his opponent when Aeternus suddenly bolted toward him. Viron didn't make any move.
'Come closer.' he thought eagerly.
Then something caught his attention. Aeternus had stopped all of a sudden, but something was moving closer to Viron at a fast speed. Viron felt threatened by that thing, so he waved his hand and materialized a shield made of fire. But nothing struck the shield.
'Did I overreact?' Viron asked himself.