The film takes the audience into the lives of the residents of the Elemental City through a love story that challenges the limits. In a world where the four elements of wind, fire, water, and earth live together but are clearly separated, Wade, a boy from the water element, and Ember, a girl from the fire element, meet by chance and fall in love. However, faced with the objective fact that "water and fire are incompatible" and the long-standing tradition of clear distinctions between the major elements, how will the two protagonists overcome the barriers and go deep into each other's hearts? A series of interesting and touching stories unfold from this.