The storyline would change significantly. Firstly, Lelouch would have the upper hand in terms of knowledge. He'd know who to trust and who not to trust right away. This would change the power dynamics in his relationships. For instance, he could expose the true nature of some of the Britannian nobles much earlier.
He could also change the course of battles. With his knowledge of future strategies, he could turn the tables in battles against Britannia. This would not only boost the morale of the resistance but also make Britannia more cautious. The story might then focus more on Britannia's attempts to counter Lelouch's newfound knowledge and power.
The best chapter pointer here is Chapter 73, "Does Someone Like Jiang Li Deserve to Have a Fan Club?". It opens with Director Sun, tongue-tied, finally managed to squeeze out a sentence,... and closes on Despite Wen Jiaojiao's fiery temper, there were still many who were drawn....
Look to Chapter 120 for the clearest answer. It begins with Facing the sudden and somewhat strange request from Jiang Li, Director Sun..., keeps building through But, as if by some mysterious force, he still instructed his assistant to..., and lands on Drink this." Wen Jiaojiao looked at the half.
If you want the clearest chapter reference, go to Chapter 136. Early on, A few people retraced their steps back to the place they had just been.; later, the chapter leans on They continued straight up the mountain path until the trees became denser....
If you want the clearest chapter reference, go to Chapter 115. Early on, Jiang Yan was woken by a loud crowing noise.; later, the chapter leans on Annoyed, he opened his eyes and saw that the hen, which should have been....
A practical answer is Chapter 126, because it turns the idea into a concrete scene. The chapter opens with Wen Jiaojiao initially wanted to cause trouble., adds pressure through Turns out their Sister Li is not only a walking encyclopedia cum mysticism..., and ends on The trolls lurking in the.
Chapter 152 is the strongest chapter-level answer because it starts from While most of the villagers of Chixia Village were gathered at the village... and follows through on That shouldn't be." Zhao Lang's eye color darkened, "I'm afraid he's....
If you want the clearest chapter reference, go to Chapter 97. Early on, Suddenly, Jiang Li's livestream room was packed with people, and the...; later, the chapter leans on [I came from Weibo's trending topics, is Master Jiang really that awesome?.
A practical answer is Chapter 117, because it turns the idea into a concrete scene. The chapter opens with Fragrant and cloyingly sweet potatoes and corn were out of the pot, and Qi..., adds pressure through Wen Jiaojiao wouldn't be trying to forage for mushrooms to cook for..., and ends on Since.
If you want the clearest chapter reference, go to Chapter 116. Early on, But before the audience in the live room had time to continue brewing the...; later, the chapter leans on Jiang Yan quickly entered the room, and a few minutes later, he dashed out....
Chapter 131 is the strongest chapter-level answer because it starts from Just around mealtime, Director Sun came over pushing his small food cart. and follows through on Hungry, they no longer cared about their appearance, quickly washed their....