"Good. We have a deal. I shall tell you about my identity, then."
Lucifer said those words with a thin smile on his face.
It was because he was happy that things were finally going his way, though things were always going his way.
However, this time it was a little bit different. Why? It was because there was the chance that Oumu would have said no to his offer.
After all, Lucifer's offer was just too one-sided and it was too advantageous for Lucifer, but still.
It's not like it was already clear skies for Lucifer and the gang.
Even after Lucifer tells Oumu his identity and everything else, there was still the possibility that Oumu would say 'Ah, forget it. I'm serving the Warmester Denobel House,' and then try to make a run for it.
And if that were to happen, whatever occurred up to this moment would all be meaningless and pointless.