Every time I read about the Three Kingdoms and the late Shu-Han period, I can't help but sigh - Zhuge Liang worked hard at Wuzhangyuan, but never fulfilled his dream of the Northern Expedition until his death; Wei Yan was blamed for "rebellion", and his loyalty and bravery ended up in a different place. In the end, the Han Dynasty was replaced by the Sima family.
Now, there is an opportunity to be different. Lin Feng, a modern special forces soldier, penetrated Wei Yan. He used battlefield tactics to break the deadlock between Shu and Wei, and used clear thinking to help Zhuge Liang share his worries. He not only shouldered the burden of the Northern Expedition, but also cleared his grievances, changed his fate, and gave the Han Dynasty more ways to survive.
If you often feel sorry for this period of history and always think about "what if it could have been like this", then every step of the rewriting in this book should be to your liking - this is another possibility for people who understand this regret.