Cheng Tianyang came to the world of the book "The Romance of Sui and Tang Dynasties" because of an accident. At the beginning, Luo Cheng's family was explained because they were being hunted. Then he arrived in Taiyuan and met Li Shimin, Li Yuan's second son. The two became good brothers because of their congeniality. Then he recruited talents for Li Shimin and waited for the opportunity to come. Cheng Tianyang returned to the Tang Dynasty and first helped Li Shimin pacify the Western Qin Dynasty. With the arrival of everyone, help Li Shimin with the protagonist to sweep away the heroes externally and dominate the world; internally deal with the joint efforts from Li Yuan, Li Jiancheng and Li Yuanji. Finally, after the Xuanwu Gate Incident, he helped Li Shimin ascend to the throne of God and created the "Reign of Zhenguan".
In addition to having rich historical knowledge, the protagonist of this book relies on his strong strategic vision. Although the protagonist's martial arts is not weak, it is not strong enough to enter the Sui and Tang Dynasty hero rankings, but his archery skills are relatively strong. Master Wang Bodang, uncle Cheng Yaojin, grandfather and Qin Qiong's father, Luo Cheng's father became brothers with different surnames. In addition, grandfather was Qin Qiong's father's deputy.
The book "Romance of the Sui and Tang Dynasties" has many regrets, and this book will make up for some of them. For example, Shan Xiongxin did not end his career in the Battle of Luoyang; Pei Yuanqing did not die young.