In the Kingdom of Qingyue, the protagonist Xun Mu comes across a book called A Medical Examination of All Things by chance. While studying it, he discovers a set of mental cultivation techniques for mastering superior inner power. But when he finds that he cannot practice them himself, he carves them into the attic of his home instead. Years later, Dong Rong, the heroine, falls into poverty and becomes a beggar. One day, she is caught stealing food from Xun Mu's kitchen. While hiding, she accidentally spots the cultivation techniques and is captivated by them. From then on, she sneaks into the attic every day to practice. Xun Mu discovers her but says nothing, simply leaving food in the attic for her each day.
A few years later, Xun Mu has mastered everything in A Medical Examination of All Things. As the saying goes, read ten thousand books and travel ten thousand miles. Now he is ready to journey across the land. By this time, Dong Rong has also become a top-tier martial artist.
From Mount Tian to the Eastern Sea, through the Miao borderlands and up to the northern desert, Xun Mu endures all kinds of hardships and performs many deeds that benefit the country and its people. Dong Rong follows him all the way, quietly supporting him.
