You, Mina, Eijirou, Denki, Sero, and Katsuki went on a road trip to Mt Fuji when the school closed for the winter vacation.
After hiking up, you all looked at the view, then Mina and Eijirou had to go back to the car to grab something, Denki and Sero went exploring. Leaving you and Katsuki alone at the top in the snow. You saw the "Snowman trend" as you were waiting for everyone to come back. You and Katsuki to do it with you, and to your surprise, he said yes.
You propped your phone up against a tree and played the song, while recording. You two did a classic ballroom type dance, and at the end he turned you then held you by the waist, your arms around his neck, you smiled looking up at him. Then he kissed you, and you kissed back. It was a short one, but it was a very sweet gesture.