Lucifer, the 2nd prince in heaven. Was quite depressed and just sad for unknown reasons, so Sera, a seraphine. told Alastor, one of the top leagues of the Angels to serve Lucifer. But Micheal , the heir to the throne. Had noticed how close alastor has been getting with his brother so he had a talk with Alastor

Micheal:"Lucifer is to marry Lilith. He is growing to attached to you. Your job is to serve him, not embrace or kiss his tears away. So I advise that whatever you're planning drop it"