Well, it could be that Naruto, as Merlin's son, has hidden magical powers that he discovers gradually. Maybe he uses these powers in the Naruto universe to fight stronger enemies or to bring peace in a different way. For example, his magic could be combined with his ninja skills.
One possible plot could be that Naruto is sent to the Naruto world from a world where Merlin exists. As Merlin's son, he has a different understanding of chakra which is related to his magical heritage. He could start to teach others about this new perspective, causing a stir in the ninja world. At the same time, he might be hunted by those who fear his unknown powers. He then has to prove himself and his intentions while also uncovering the secrets of his parentage.
In a 'Naruto son of Merlin' fanfiction, the plot might start with Naruto's strange dreams or visions about a mysterious figure, which turns out to be Merlin. As he discovers his relation to Merlin, he realizes he has access to ancient magic. This magic could help him in his quests in the Naruto world, like finding a way to end the cycle of hatred. He might also face opposition from traditional ninja clans who don't trust his new - found powers. As the story progresses, Naruto could use his magic and ninja skills to bridge the gap between different factions and create a more united ninja world.
Chapter 193, "Do You Really Think the Audience is Blind?", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event. It opens with Jiang Shixu's eyes lit up when he heard there was a gift. and closes on Jiang Cheng was a prime example..
Chapter 712, "This is definitely not reliable!", 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 Exactly, exactly." Wen Jiaojiao said discontentedly, her arms crossed.
Chapter 623, "Turned into a Little Crybaby", is the clearest early answer because it turns Fire Stick's situation into a concrete plot event. It opens with Jiang Cheng woke up again, this time realizing he was being carried...
Chapter 371, "Oh, Isn't This an Old Acquaintance?", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. A useful checkpoint is the way the scene starts with #He Yun Thanks Jiang Li# #He Yun Bows# #LiHe CP# The interview wasn't...
Chapter 393, "Clearly Marked Prices, No Deception to Young or Old", is the clearest early answer because it turns Shang Shaobai's situation into a concrete plot event. The chapter gives readers a real answer by opening on Shang Zhenhe's business prospered, discord began to form between him...
Chapter 504, "It's me, Gu Yu", is the clearest early answer because it turns Gu Qiang's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Just a short distance away, a group of people gradually approached...
Chapter 369, "Who Makes Him the Omnipotent Male Lead?", is the clearest early answer because it turns Shen Lan's situation into a concrete plot event. The chapter gives readers a real answer by opening on But..." Lin Manru's tone shifted again, "Our studio has become...
Chapter 92, "Why would a 19-year-old girl read this kind of book?!", is the clearest early answer because it turns Kang Bazi's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Li, lightened from any task, had plucked a few leaves from the...
Chapter 176, "Su Yinwan: I Have a Stronger Taste", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Shang Shaojing didn't suspect anything and popped the greens into his...
Chapter 158, "It's Time to Recruit Someone Who Understands Mysticism to Work Here", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.