Ive been wanting to make this for ages. A kind of ‘dude that’s my ghost!’ AU where Gilbert was a pretty famous rockstar and then dies in a car accident or something. Ludwig really misses his older brother and the only thing he really has left of him is his necklace.
One day he decides to put the necklace on, hoping it might make him feel better and suddenly Gilbert appears in front of him (a very blue and very dead Gilbert). So as long as Ludwig wears Gilbert’s necklace, Gilbert can talk to him and he can also touch him and follow him.
So in short; Ludwig has Ghost Gilbert following him around and Gilbert is pranking people and putting Ludwig in trouble like a good (dead) brother.
Headcanon that all the north european countries go to Gilbert after they lose. They feel like because he isn’t a country he won’t brag or make fun of them so they all gather at Germany’s house (Gilbert stayed behind and didn’t go to vienna) Gilbert isn’t exactly that happy about it.