User blog comment:B214/DxD Zero: Sirzechs story/@comment-37165251-20181013214301/@comment-2601:8C:601:5692:DCC0:3977:6CF3:F6BA-20181014055350

Rather couldn't Lucifer's title(?), 「明けの明星 」(Star of Dawn; lit. Morning Star of Daybreak), possibly be the name of their trait? I mean, Lucifer was originally an alternate name for the Morning Star (Venus), Beelzebub literally translates as "Lord of Flies, and Leviathan's trait name can probably be interpreted to mean "leviathan". As for their abilities, Beelzebub's is self-explanatory, while Leviathan's is heavily influenced by the fact that it is a draconic monster of the oceans. So, Lucifer being connected to some sort of light, possibly in relation to "stars" or "dawn" is the most plausible. As for Asmodeus, I haven't a clue, which is why I truly hope that Ishibumi gives Daidalos plenty of attention in part 4. Honestly, I always felt Creusery was treated quite cruelly by Ishibumi, having him practically one-shotted by Sirzechs without really doing anything. If there's a repeat....