In the late Hongwu period, Prince Yiwen died of illness, and Zhu Yuanzhang hesitated a little in choosing the successor to the throne. Therefore, surrounding this reason, there were turmoil and undercurrents inside and outside the imperial city. The protagonist, Xiaoqi of the Imperial Guard, unknowingly walks into this vortex and becomes the focus of conflict between all parties. It depends on the choice and persistence of the little guy in the big situation. After carefully studying the relevant historical materials, this book focuses on outlining the intrigues and suspense, and uses the main line to reasonably connect the historical facts, hoping to give readers a novel and exquisite reading feeling.