Namikaze Minato's nickname in the plot is "Yellow Flash", which is not his self-styled title, but many Konoha ninjas and even other ninjas in Ninja Village call him that. The reason is that his hair color is the most obvious golden yellow, and Watergate is proficient in Flying Raytheon, and its speed is even faster than that of Senju Tobirama, the developer of "Flying Raytheon", which was once praised by Senju Tobirama. "Flying Raytheon" consumed chakra greatly, which led to being banned, and Namikaze Minato was able to master it skillfully, indicating that Namikaze Minato had a strong amount of chakra in his body.
The name "Yong Daimei" did not appear in the original plot, but was a nickname given to Namikaze Minato by many Huo Ying fans. The reason is that the pronunciation of "four generations of eyes" in Japanese is "Dai Yong Mei" in Chinese, which is an obvious homophonic stalk. In addition, Namikaze Minato is very good at flirting, and nine-year-old Sinai married him, so Naruto fans like to call Namikaze Minato "Yong Daimei"