The little dispute finished in an instant when Raya Pazier said her piece about the current situation.
Either way, her helping out Oum was something that not even Oumu would have expected.
After all, Oumu did get on her nerves before, so...it got a little bit awkward now that Oumu was just standing around and nothing was happening.
Well, there was something happening. Oumu was able to feel the hot gazes coming from the dark fog surrounding Lucifer.
It was probably the demon incarnate and Nocturnal Phantom who were about to kill him earlier.
It seems that they were getting ready to do something and kill Oumu once they find even a single suspicious movement coming from him.
Anyway, the silence was really irksome even to Rouge, as it was even getting a little bit awkward for him.
However, it was only natural that they would have this kind of silence.