AU where instead of isolating himself from his people for thousands of years, once Charlie was born Lucifer attempted to reconnect with his people again. Incognito, by disguising himself and opening a duck-themed cafe in the Pride Ring where he can interact with sinners on the regular without them knowing who he is. Although no one recognizes Lucifer-passing-himself-off-as-a-sinner, the first couple a times someone tries to give him trouble at his cafe he quickly shuts that shit down and gains a reputation as someone not to be messed with. And since he's not going around collecting souls or extorting people for money or whatever, most of the worst sinners just leave him and his little cafe alone. It becomes a place known to the less bloodshed-prone sinners as one of the few places they can just exist in peace.
Then a hundred years go by and the Radio Demon makes his debut slaughtering Overlords and striking fear in the hearts of sinners all over Pride. He appears in the cafe with a sinister grin and Lucifer demands to know what he wants, bracing himself for a fight...
Only for Alastor to order a dark roast.
Lucifer's confused. So are the regulars who all ducked for cover the moment the Radio Demon strode in. But Alastor doesn't make any trouble. He takes his order, chooses a seat by the window, and proceeds to read a newspaper while enjoying his coffee. When he's done he leaves a rather sizable tip in the tip jar before thanking the disguised king and going on his way.
Lucifer's cafe gains a new confusing regular that day and he's not sure how to respond when Alastor keeps showing up. Since he's been among sinners for a while now, Lucifer does know of the Radio Demon's reputation and doesn't understand why Alastor isn't causing any trouble. Slaughtering the customers, trying to eat people's faces, that sort of thing. Not that Lucifer wouldn't be perfectly capable of handling Alastor if he did something like that, he's just confused as to why Alastor hasn't even tried.
He kind of sort of gets his answer one day when a brute comes into the cafe thinking he's going to hold it up. The robber grabs one of the regulars and presses a gun to their head, threatening to to shoot if Lucifer doesn't empty his cash register. Before Lucifer can do anything, though, a black tentacle severs the robbers arms and the hostage is able to scramble to the relative safety below the table. Alastor stands up, says something about how it would be a shame to make even more of a mess of this lovely cafe, and seizes the robber by the back of their jacket before coolly striding out the door and dragging them into the alley between buildings.
Everyone can hear the squelching and snapping noises, the horrific screaming followed by an abrupt silence.
Then Alastor strides back in, humming a jazzy tune with blood and viscera staining the front of his coat. He asks Lucifer if he can steal a roll of paper towels before going to the bathroom to clean himself up.
Okay, Lucifer thinks, so the rumors about the Radio Demon weren't exactly wrong, but they weren't wholly right either. He sort of wishes that Alastor had just done nothing and let Lucifer handle the situation without traumatizing the rest of his customers - and he's grumbling about it as he cleans up the severed arms and blood puddle - but still... He can't help being a tad intrigued by this contradictory sinner.
Context: there was a “hottest Hazbin Hotel character” poll over on Twitter, the finalists were Vox and Lucifer (fandom went crazy, there was bribery and campaigns) and Vox ended up winning.
How did a literal tv beat an angel? Idk, man. Don’t ask me, I just work here