Alastor is a prince that lives in a fairytale world full of magic, talking animals, and musical numbers, but one day his father decides to marry him off to the king of a neighboring kingdom to finalize a treaty. Alastor tries to fight back against his father's ruling but he doesn't have a say.
Even if Alastor wanted to marry this king Vox sounded like an awful man. His kingdom was powerful but always at war like he was trying to rule the world instead of just his kingdom.
So Alastor asks a favor of a witch named Rosie. He wants her to send him far away from there so he would never have to deal with his father or Vox again.
Alastor ends up in our world and he doesn't understand what is going on. He hadn't expected the place she sent him to be this different from anything he'd ever seen before.
Unsure what to do Alastor just starts wandering through the streets until he can find somewhere to stay.
Meanwhile Lilith is on her way home with Charlie when their taxi almost crashes into Alastor. Charlie is immediately in awe of Alastor. This guy looks like he just walked out of a fairytale so he must be a prince! Charlie runs out of the car to see him and Lilith chases after her.
It becomes immediately clear that Alastor is desperately confused and has no idea where he is and with some prodding from Charlie they decide to bring him with them so they could get him help.
They go home and Lucifer is shocked to see that they're not alone and very concerned as to why they would bring this strange man into their house.
Lucifer and Lilith go off to the side to argue about this and Alastor ends up falling asleep on their couch.
They had been planning to call him a car and get him where he needed to be but Charlie was begging to let him stay because he was obviously very tired and he needed their help! Lilith and Lucifer end up letting him stay the night.
One night becomes longer and everyday gets significantly weirder. Charlie becomes more and more convinced that Alastor is an actual prince from one of her fairy tales and with all the singing and befriending animals that Alastor is doing they kind of understand why.
But as weird as Alastor is he's also so sweet with Charlie, and he's a good cook, and he's funny, and oh no are they falling for him?
Though of course nothing can be easy because Vox found out what happened and decided to hunt down his runaway bride.