Qingtan, a princess of the Dragon Clan, was sent to the Langyuan Fairyland by her father, King Qinglong. Because Nanli, the son of Emperor Yan, was born with a body of fire and had to restrain people with cold bodies, the Emperor of Heaven gave Qingtan to Nanli as a maid. When Qingtan first entered the fairyland, she was ridiculed by Qianxi, the prince of the Fox clan, and Kun, the second son of the Emperor of Heaven. Ling teases and ridicules, and does not get along with Nanli. He only makes friends with Jiuyi, a princess of the Phoenix tribe with a straightforward personality. Jiuyi is the maid of Fuguang. Fuguang is the eldest son of the Emperor of Heaven. She is upright and warm, and often takes care of Nanli. However, Nanli has never been able to integrate into the Langyuan fairyland because of his body of fire.
A battle between demons and immortals unexpectedly revealed Nanli's special identity. In order to thoroughly find out his life experience, Nanli and Qingtan went to the demonic realm and the polar regions of ice and fire, starting a journey to find their roots.