It was theirs

Every year, in a city called Huy, Belgium, last year high school students gather for a huge drinking session named Saint-Nicolas des Rhétos. They customize a lab coat, have it signed by friends and relatives, and as a final touch they trash it on the big day by throwing wheat, ketchup, eggs and so on one to each other. This year, they had exams the day after. The snow invited itself to the party. It didn't discourage these three ones to attend to the ball. This Saint-Nicolas was theirs.

Done