Well, it could be that Naruto is really confused at first. He might find the ideas in the fanfiction very strange, like the new powers of immortality described. Maybe he starts to question his own understanding of the ninja world.
Perhaps in this 'naruto reading the first immortal fanfiction' scenario, the fanfiction is actually a prophecy in disguise. Naruto, not realizing it at first, starts to notice that some of the events in the fanfiction seem to be related to things that are starting to happen in the real ninja world. He then feels a sense of urgency to understand the rest of the fanfiction to prevent any disasters or to bring about a new era of peace. He might go on a journey to find the author of the fanfiction, believing that they have some kind of special knowledge or power.
Chapter 595, "Four-legged Black Toad", is the clearest early answer because it turns Four-legged Black Toad's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Li steadied himself with support, endured for a while, and then...
Chapter 657, "The Richest Man Becomes a Hardcore Fan?!", is the clearest early answer because it turns Zhou Xu's situation into a concrete plot event. The chapter gives readers a real answer by opening on Zhao Lang had arrived in the Capital in the early hours of the...
Chapter 587, "Has He Also Become a Part of the Play?", is the clearest early answer because it turns Bai Lu's situation into a concrete plot event. The chapter turns that into something concrete by moving from Zhao Lang said "thank you," but his eyes reluctantly glanced at Jiang...
Chapter 927, "Jiang Li: Deceased, Do Not Disturb", is the clearest early answer because it turns Jiang Bufan's situation into a concrete plot event. The chapter gives readers a real answer by opening on Doomsday Beehive" made over fifty million in box office sales within...
Chapter 743, "They Have Already Been Released", is the clearest early answer because it turns Xing Mingfei's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Too many people caused a commotion at Fang Family's place tonight,...
Chapter 654, "Did Everyone in Team Q Go to the ICU?!", is the clearest early answer because it turns Miss Jiang's situation into a concrete plot event. A useful checkpoint is the way the scene starts with All of a sudden, all public opinions burst out.
Chapter 678, "The Biggest Connection in the Circle of Friends!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from The landlord stood up, maintaining his smile, "Fifty-eight thousand,...
Chapter 801, "This Elder Sister Is So Smart", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter turns that into something concrete by moving from Buchen is quite diligent, he even knows how to tidy up his own...
Chapter 817, "Killed by Me", is the clearest early answer because the violence around Jiang Mingchuan becomes final instead of hypothetical. The chapter gives readers a real answer by opening on Jiang Buchen leaned against Meng Wanzhi's chest and thoughtfully...
Chapter 634, "All Villains", is the clearest early answer because it turns Yu Li's situation into a concrete plot event.