If Jieting had not fallen, how could the Shu Han have perished?
He wakes up to find himself in Ma Su's body.
The very Ma Su who was "all talk and no substance, unfit for great responsibility," lost Jieting, and was wept over by Zhuge Liang as he ordered his execution.
At the moment he opens his eyes, history is repeating itself at its most critical second: the army has reached Jieting, Deputy General Wang Ping is urging him to camp on the main road, and "he" has just ordered the entire army up the mountain.
He knows how it ends: their water supply is cut off, they are surrounded, twenty thousand troops are routed, he loses his head, and the Prime Minister's first northern campaign ends in failure.
Fortunately, transmigrating has given him a pair of eyes: [Battlefield Insight]. He can see the advantages and disadvantages of the terrain, the strength of both armies, and the dangers posed by water sources. But it only lets him see, not kill. If he wants to survive, he'll have to rely on himself.
"Send the order! Cancel the order to climb the mountain. Camp on the main road!"
With that shout, history takes a different turn.
He holds Jieting and cuts off Zhang He, winning his first battle against the odds. He pacifies Longxi and recruits Jiang Wei, providing the Prime Minister with the talent and granary he needs most. He trains a new army and expands farming colonies, determined to dismantle the time bomb of Shu Han's chronic shortages of troops and grain.
Those who once mocked him for empty theorizing fall silent one by one.
Zhuge Liang strokes his beard and sighs, "Younger Constant, you have truly made me see you in a new light."
Sima Yi gazes toward Jieting and says only four words: "Shu still has trouble ahead."
In this life, the northern campaign will not end in tears.
Come on, update and stop being a eunuch.
In fact, if a modern person really travels back in time, giving him a golden finger may not necessarily change history.
Very nice, not brainless.