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.
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.
Chapter 23 is the strongest chapter-level answer because it starts from Although Jiang Li exerted very little strength, Jiang Yan instantly felt... and follows through on However, just as she buried herself in the study, pouring over mysticism....
Chapter 11 is the strongest chapter-level answer because it starts from After a meeting, Shang Shaojing pinched the bridge of his nose, tired, and... and follows through on Miss Qin, please accompany us to the police station to explain this....
A practical answer is Chapter 36, because it turns the idea into a concrete scene. The chapter opens with But soon, people began to question the authenticity of Jiang Li's bare..., adds pressure through Qi Tianyu, catching the signal, instantly turned to the duo upon entering..., and ends on After.
If you want the clearest chapter reference, go to Chapter 39. Early on, Qi Tianyu had been looking forward to watching Jiang Li's drama unfold.; later, the chapter leans on But to his surprise, Wen Jiaojiao, who seemed to possess some strength,....
Chapter 826, "Deadlock", is the clearest early answer because the violence around Mr becomes final instead of hypothetical. It opens with The Li Family Master had spoken, so Father Yu quickly followed suit... and closes on Yu looked puzzled, "What, you all know this Jiang Li?" Father Yu had....
Chapter 912, "Identical Four Pillars of Destiny?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. Early on, But the repeated blows made Wan Huixia's husband lose his confidence....
Look to Chapter 4 for the clearest answer. It begins with Qiao regretted her words as soon as they left her mouth., keeps building through Whether Jiang Yan can be found or not was another matter., and lands on A little girl acting mysterious, learning fortune-telling, what is this....
Chapter 34 is the strongest chapter-level answer because it starts from Seeing that the public sentiment wasn't quite right, Su Yinwan felt... and follows through on Now that Lili is misunderstood, they start to kick us while we're down."....