Carol is the element of light tasked with protecting Christmas.
Light elementals send in forces to fight off demons crossing over from another dimension that attempt to take over Christmas every year.Carole is that elemental force's commander. Her wish and joy is to safely complete her mission so people can spend a merry Christmas. After Christmas is over, she returns with her men and trains diligently to prepare for the next one. Carol's Forces are famous for training a lot, but her men stay infinitely loyal to their bright and joyful commander. She's so popular there's even a fanclub of her.
Carol's elegant swordsmanship is also a contributor to her popularity. According to one of the soldiers who trained with her, she gracefully deflects the enemy's attack before overpowering her foe. It almost looks like a beautiful dance performance is taking place.
The only flaw to the seemingly perfect Carol is her atrocious fashion sense. She once left her base in civilian clothing, but her outfit ended up being chosen for 'Worst Fashion of the Year' on the elemental magazine. Carol fell into severe shock, and started to get fashion advice or outfit recommendations from her peers to broaden her horizons. Sometimes she goes into battle wearing the outfit her men recommended her. Everytime she does, her troop's morale skyrockets. Carol's confidence and passion about fashion is growing daily, thanks to her men's enthusiasm. On her days off, Carol sneaks out to research fashion from the human world. Recently, she was deeply inspired by Mayreel's fashion of wearing her priest outfit sloppily.