It changes the story in many ways. For one, Naruto's fighting style would be different. Instead of relying solely on his shadow clones and Rasengan, he would incorporate genjutsu. His battles would become more strategic as he uses genjutsu to deceive his opponents before attacking. For example, he could make an enemy think there are multiple Narutos attacking from different directions when it's just a genjutsu.
Naruto's relationships might also change. His friends would be both amazed and a bit wary of his new powers. Some might even be jealous. Also, the village elders would view him differently. They might see him as an even greater asset or a potential threat depending on how they perceive his new genjutsu bloodline. He would have to prove that he can control his powers and use them for the good of the village.
The overall plot would likely shift towards Naruto exploring his new powers. There could be new villains who are interested in his genjutsu bloodline, either to steal it or to destroy it because they fear its potential. This would lead to new adventures for Naruto, as he has to not only master his genjutsu but also protect it from those who would misuse it. He might have to travel to different places to learn more about his bloodline, which would introduce new characters and settings to the story.
Chapter 331, "Zhu Shun, Huang Tianxi, the Third Cold Yuan Banquet of Great Xia, and Xia Yuzong", is the clearest early answer because it turns Zhu Shen's situation into a concrete plot event. It opens with Inner City's main street, Zhu Shun led his wife Huang Yuniang and... and closes on But later, as the Camp Supply Department sent over the ceremonial....
Chapter 345, "Luo Ming, Mirror Valley Defense Commander, Beast Tide, Great Xia's 6 Armies", is the clearest early answer because it turns Xu Kang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Great Xia, Year Seven, September Ninth, the latter half of the night... to The Ice Tree takes advantage of its role as a staple, otherwise, the....
Chapter 326, "Divide and Annihilate, Shattering Divine Light, Trump Card Activated!", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. The chapter gives readers a real answer by opening on A Frost Wolf less than two meters in length suddenly charged out from... and ending on However, how could Xia Hong let it escape?.
Chapter 310, "The Leader Is Still the Best, The Consequences of Losing the Bet", is the clearest early answer because it turns Great Xia's situation into a concrete plot event. The chapter gives readers a real answer by opening on Li Tiancheng tightly closed his eyes, his face filled with pain,... and ending on Why did her second uncle not let her lead the Li Family disciples to....
Chapter 289, "Crushing, Stalling for Time, Ning Yuan Hill's Decisive Victory", is the clearest early answer because it turns Long Mountain's situation into a concrete plot event. The chapter gives readers a real answer by opening on Traitors, 800 sets of armor, the severely injured Hou Hu, and of... and ending on He remembered seeing Li Xuanling for the first time in April; she....
Chapter 315, "The Strange Cold Apple Tree and the Seized Silver Mine (3)", is the clearest early answer because it turns Redwood Ridge's situation into a concrete plot event. The chapter gives readers a real answer by opening on Thank you, Leader, for the Spirit Pill. and ending on This is almost unquestionable; otherwise, where did so many Cold....
Chapter 306, "Rebel Collaborators, Chaos and Opportunism, Long Mountain Changes Hands", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. The chapter gives readers a real answer by opening on Li Tiancheng, do you really think us outsiders are the Li family's... and ending on Isn't the fight still ongoing outside, the main building hasn't been....
Chapter 339, "The Changes of Li Hu and Yang Zhong, the Hou Family's Opportunity, Advice (Part 5)", is the clearest early answer because it turns Great Xia's situation into a concrete plot event. The chapter gives readers a real answer by opening on The Lingbei, Longshan, and Beehive factions in Xia City have long... and ending on Hou Bing was slightly stunned and asked in confusion: "Isn't it just....
Chapter 126, "The Production Team Actually Played Dirty on This?!", is the clearest early answer because it turns Actually Played Dirty's situation into a concrete plot event. Early on, Wen Jiaojiao initially wanted to cause trouble..
Chapter 286, "Zhou Yuan's Dilemma, Changbai Gully", is the clearest early answer because it turns Li Xuanling's situation into a concrete plot event. It opens with East of Long Mountain, western border of Changning The convoy... and closes on Zhou Yuan, hanging on the army's flank, watched the four leave.. The key payoff is that the chapter closes with Recalling years of diligent service under Li Tianhua, loyalty to the Li Family finally paid off.