The Iron-Armored Song Soul: the Mechanical Engineer's Anti-Gold Legend

Focusing on the protagonist, a modern mechanical engineer who helps Yue Fei fight against the Jin Dynasty due to his adventures in the late Northern Song Dynasty, the story takes the protagonist's growth as the main line, combines historical events and technological applications, and plans the story in volumes, which not only shows the process of fighting against the Jin Dynasty, but also reflects the protagonist's knowledge transformation and identity transformation.