Marcy & Simon’s story (from Adventure Time, for those who doesn’t know about it) has always touch me right in my feels, but lately it’s excessive D: and actually, I have this girl’s cosplay in my “For painting” folder since months ago.
You can find the original cosplayer in DeviantArt by the nick of XHee_HeeX. I truly fell in love with her. I leave here her dA’s link for you to stalk her work as I do :3
Marceline catches the cold right after Simon sprinkles her with his snow. This could be a reference to the episode “What Have You Done?” where the Ice King’s beard flakes accidentally make the citizens of the candy kingdom sick. This could mean Simon was unintentionally responsible for Marceline becoming ill.