I didn't know that there was a novel where the male protagonist was Qin Siyan. However, I can recommend some works related to this name that may meet your needs: 1. Feng Qiuhuang: The male protagonist of this novel is called Qin Siyan. It is a complicated relationship between a beautiful woman and a cold and heartless emperor. 2 " Demonic Ancestor ": Although the main character of the novel is male, there is a villain named Qin Siyan who has powerful magic power. 3." Choosing the Heavens ": The male protagonist of this novel is called Qin Siyan. He is a cultivator who has experienced many challenges and adventures in the novel. I hope these recommendations will be helpful to you!