Lu Wuming has lived in the isolated Shiyuan tribe since he was a child. Although his father is the richest man in the tribe and he has no material worries, his family has always been indifferent to him. He has lacked love and care since he was a child, and was often teased by his peers, which made him cold and withdrawn.
In the entire tribe, only the crazy Crazy Grandpa and Sister Lin were good to him, so he often stayed with them, and over time they became his dependence. Later, he discovered that the crazy grandpa was not crazy at all, and was also very wise and accomplished in the art of war and piano skills, so he started to learn from him. In a few years, he learned a lot of military strategies and became the new master of the Feiling Sword. Later, Sister Lin's mother married his father, and Sister Lin really became his sister. They didn't know what this meant at the time. It wasn't until someone proposed to Sister Lin when they were twenty that they realized they had been in love for a long time. They want to stay together forever, but they are opposed by their families and the world. Sister Lin saw that her marriage was hopeless. In order to prove her loyalty to love, she became a nun in a rage. Lu Wuming, who was extremely desperate, decided to escape from the Shiyuan tribe.
After leaving the Shiyuan tribe, he discovered that the outside world was at war. War was everywhere and the people were in dire straits, but he was so heartbroken that he didn't care about anything around him. In order to escape the war, he rushed to Shengjiang City in Kyoto, Fengling Kingdom, with many refugees. On the way to escape, he accidentally met a good friend Li Jiyu.
After arriving in Shengjiang City, Lu Wuming, who had no love or sorrow, began to live in a brothel, and he hired Hui Hui, a famous prostitute in the capital, for a year. As a result, he became notorious as the number one prostitute in the capital. Although his reputation was not clean, his body was clean, but his aloof character and resentment towards the world made him let everything go.
A few months later, Fengling's second line of defense was broken through by Zibing's allied forces. Fengling was defeated, lost a large amount of land, and was in danger of subjugation at any time. In order to fight to the death, the king of Fengling Kingdom captured strong men everywhere and sent them to the army. It was under such circumstances that Lu Wuming was picked up from the brothel by the soldiers and forcibly sent to the front line of the battlefield.
As a private, he was assigned to the South Camp and was responsible for guarding the Sword Tiger Valley. After coming to Nanying, Lu Wuming found out that Li Jiyu was already a deputy general in the army, but he didn't want to rely on him to climb up the ranks. He just wanted to live a peaceful life. He took part in the battle and killed eight people in just a few days. He felt guilty and fell ill that night. After he recovered from his illness, he continued to go to the battlefield. Unfortunately, he was hit by an arrow and almost died. After experiencing killing and being killed, Lu Wuming has a new perspective on life, life, and war. After careful consideration, he decided to use the military tactics taught by Mad Grandpa to defeat Zi Bing's allies and defend Fengling Country, because he knew that only in this way could the war end as soon as possible and the common people of Li could stay away from the war.
At this time, the supreme commander of the Southern Camp, General Li Qu, had been killed in battle, and the acting general Li Yu took over. In order to avoid shaking the morale of the army, General Lee's death has been kept secret. However, this approach can only save the moment, but cannot fundamentally solve the problem. Just when the generals were at their wits' end, Lu Wuming came up with a plan to help them escape and stabilize the situation.