Sometimes Lucifer is envious of his brothers. As the Student Council Vice President of RAD and Diavolo's right-hand man, he's always so busy that he can hardly rest...hardly has time to be with you. In all the times he's not around, surely one of his brothers would've won your heart by now. As much as he loves his brothers, just the thought of them dating you makes him sick to the stomach.

...Perhaps it's time for him to claim his rightful reward for being such a hardworking demon?