Advent Calendar Door 1

So, let's start the games :-)
I hope this is going to be fun for all of us, and you will enjoy the daily surprises as well ♥

I proudly present you door 1 of my fanfiction advent calendar. One of you requested it~
Click on the pic to see if it's your fic!




If you like puzzles, I'll give you a hint:

(One part of the pair has asthma. The other always has the most eccentric costumes during their concerts. One likes to eat, the other likes insects. One lived abroad as a child.)