Naruto would likely become more understanding of Itachi's past and the sacrifices he made. His view of the Uchiha clan and the concept of loyalty would be broadened. For Itachi, being with Naruto during the time travel might make him more open about his emotions. He would start to rely on Naruto not just as a comrade but also as someone he has deeper feelings for.
Naruto's character would grow in maturity. He would learn from Itachi's wisdom and experiences in different time periods. His naivete would be replaced by a more calculated approach in some situations. Itachi would also change. His cold exterior would start to thaw as he spends more time with Naruto. He would start to show more vulnerability and his love for Naruto would make him question some of his previous beliefs about his own life and purpose. This would all be a slow and gradual process as they face various challenges during their time travels.
If you want the clearest chapter reference, go to Chapter 23. Early on, Although Jiang Li exerted very little strength, Jiang Yan instantly felt...; later, the chapter leans on The pain twisted his face grotesquely as he dove headfirst into the sofa..
Chapter 786, "Working at Chen'an?!", is the clearest early answer because it turns Jiang Mingyu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with When Jiang Li left Taiqi's office building, it was already getting...
If you want the clearest chapter reference, go to Chapter 28. Early on, The next evening, Jiang Yan drove home seething with rage.; later, the chapter leans on Before he even entered the dining room, he shouted angrily, "Lili, you did....
A practical answer is Chapter 48, because it turns the idea into a concrete scene. The chapter opens with He Yun felt guilty for initially ignoring Jiang Li on purpose, and with..., adds pressure through [Such a stark contrast on camera, five people feeling dejected, and..., and ends on Besides.
If you want the clearest chapter reference, go to Chapter 18. Early on, In the corner, a girl in a black dress sat quietly, holding a glass of...; later, the chapter leans on Her serene yet cold temperament, along with her exquisitely beautiful....
Chapter 843, "Why the Sudden Change of Heart?!", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event.
Chapter 672, "Wealth Brings Wealth, the Early Bird Catches the Worm!", is the clearest early answer because it turns Weibo's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The president immediately stood upright, "We are all officially...
Chapter 896, "Are You a Male Model?", is the clearest early answer because it turns Sister Jiaojiao's situation into a concrete plot event. The chapter gives readers a real answer by opening on Upon hearing this, Wen Jiaojiao seemed to think of something and...
The best chapter pointer here is Chapter 19, "I dare you to touch her!". It opens with What criminal law is this or that, this was originally none of your... and closes on Please give me Miss Su's birthdate." Mr..