Lulu, an excellent staff at a devil’s factory, collects human souls to make “candy.” His flawless work record is disrupted by the kindness of a little girl and her father, a candy designer, prompting him to visit their human candy shop. The little demon, who subtly reveals himself when he consumes candy, experiences the pure magic of sweetness for the first time. However, his duty to hunt souls forces him to confront the tragic shattering of beauty.