daverose the last unicorn au where rose is some sort of supernatural/magical creature forced to hide in a human body to evade the horrorterrors. 

and dave is a knight who falls for her without knowing.

the longer she stays human, the more likely she’ll never turn back into her true form.she becomes so human she falls for him too. he makes her want to be human, even.

if she turns back and faces the horrorterrors, she won’t be able to love him anymore, but if he knows if she doesn’t, she’ll never be herself again.