The young general Huo Chengyan, famed for his many military achievements despite his youth, gains the Phantom and Thunder elemental powers after two demon generals hunt him down. To cure the innate poison afflicting his younger sister, he must travel to the Kingdom of Canglan. He is a young general of the ancient Kingdom of Xingyuan, and after years of campaigning, he has earned a glorious record on the battlefield. When two demon generals once surrounded him with a deadly attack, he awakened dual elemental power on the brink of death, gaining control over the rare elements of illusion and thunder. His strength immediately rose to the highest ranks on the continent.
But beneath his glory, he carries a heavy burden. His younger sister, who grew up with him, has suffered from a congenital poison since birth. No renowned doctor in the land can cure her; only an ancient secret medicine, far away in the Kingdom of Canglan, can heal her. To save his sister, Huo Chengyan bids farewell to the imperial court and joins the Xingyuan envoy mission into Canglan. On the way, they are ambushed, and the group loses their way in the mountains.
At the foot of a cliff, he saves Mu Jiuling, who has fallen and is dressed in a ragged set of men's clothes. Mu Jiuling is small and thin, with yellow powder smeared across her face. She looks just like an idle mountain beggar. Huo Chengyan assumes she is an ordinary beggar and stays on guard, repeatedly drawing his sword to test her. What he could never have imagined is that this seemingly helpless young man, unable to muster even a trace of spiritual power, is actually the hidden Holy Maiden of the Kingdom of Canglan. Mu Jiuling possesses an ancient sacred constitution. Though she was born unable to cultivate spiritual power, she has an exceptionally long lifespan and has lived for a full two hundred years. Having seen every side of the world, she is quirky and spends her days wandering the mountains disguised as a man. The two travel together, and she is forced to guide the envoy mission. She jokes and banters along the way, resolving crises more than once. As they spend more time together, Huo Chengyan gradually falls for this "young man," who seems frail but is in fact clever and perceptive. He cannot explain this feeling, this restraint and self-control...
Theme: Following the growth of Huo, Mu, and the others, the story uses their choices and development to explore and remind readers never to give up on their companions.
