The male protagonist is from the Fire Tribe and the female protagonist is from the Water Tribe. They are two ethnic groups that are incompatible with each other. Because of love, the male protagonist's heart beats and the female protagonist is moved afterwards. For love, they were discriminated against by the tribe and suffered the punishment of water and fire. Finally, they ended their lives by death. In the cave on the cliff, they moved the heaven and the earth. In the end, the Fire Tribe and the Water Tribe merged into one Dragon Tribe.