Eisen and Satel continued to fight. Specifically, right now Eisen was fighting against the Monsters that Satel summoned by using another one of the 'Runes of the Nine Circles', the one for Violence.
These enemies were rather similar in nature to the first monster that Eisen fought in that circle. They were just rushing at Eisen without a moment's hesitation, not caring for their own well-being if it just meant that they were able to injure Eisen even a little bit.
Of course, enemies like that were easily dealt with, the only issue was the mass, together with the fact that they came jumping out of the styx-sludge. Eisen was unable to see them at all before they came out of that disgusting liquid of pure, rotting death, and due to the sheer number of them, they were able to actually get a few good hits on Eisen.