Naruto's surname is not Feng Bo, because all four generations are door-to-door sons-in-law?
That's why Namikaze Minato's son was named Vortex.
In fact, everyone has already asked this question. After some discussion, I think Namikaze Minato's inverted door is the most convincing. Today, Lan Shu answered here:
In the whole cartoon, the author does not introduce Namikaze Minato's family, parents and elders. At least in the known information, Namikaze Minato is not a well-known family in Mu Ye People's Village, and may even be an orphan. Why do you say that? Start with the owner of Namikaze Minato!
Namikaze Minato's teacher is Jiraiya, one of Konoha's three forbearance. Jiraiya's character has always been unrestrained. Because of his own fetters, orochimaru defected from the village. He felt deeply guilty and gave up Huo Ying's road, so he kept looking for and monitoring orochimaru's whereabouts. In the endurance race of World War II, Jiraiya was named Konoha Sanren by Shimada Hanzo, a ninja demigod and mountain pepper fish at that time. Later, Jiraiya, who was kind-hearted, met Nagato, Yahiko and Xiao Nan in Rencun and accepted them as disciples. Later, I met Namikaze Minato and took him as an apprentice.
Judging from Jiraiya's personality and experience, Namikaze Minato's life experience is likely to be similar to that of Nagato and the three of them. He was also an orphan in the war. Because Jiraiya has been looking for his future son, after seeing Namikaze Minato's super powers, he was asked to be his apprentice. However, marriage is no joke. Although Namikaze Minato was Jiraiya's apprentice and won the title of "Yellow Flash" in the Third World Endurance War, he was naturally inferior to Uzumaki Kushina because of his poor background before marriage. Naruto's mother is a famous family in the whirlpool country and can be certified by her first wife. The wife of Senju Hashirama, the first generation of Huo Ying, was a member of the Whirlpool family. At that time, the Senju Hashirama family was so powerful that marriage events could not be improper. Therefore, the whirlpool clan is definitely a noble family in the whirlpool country, even a royal aristocrat.
Therefore, although Namikaze Minato's hero saved the United States in World War III and made Uzumaki Kushina secretly make a promise, he had to adopt a son-in-law because of his inferiority and became a whirlpool family. Because of this, the author Kishimoto Masashi made Naruto change his surname to Vortex, so that he didn't know his own life experience, so that people in the village didn't know Naruto's life experience (if everyone knew that he was a descendant of Naruto for four generations, how could there be childhood loneliness and later struggle), so that the ninja community didn't know that he was a descendant of Huang Shan (after all, Huang Shan killed so many people in the Third World War, which was also a kind of protection for Naruto).