Sir, Times Have Changed.

More than 3,700 years ago, human beings suddenly suffered an unexplained petrification, and millions of years of technological civilization were destroyed. After years of baptism, the earth has returned to its original ecology, leaving only billions of strange stone statues. Later, as the sun, moon and stars moved, humans finally appeared on the earth again. Due to the arrival of the alien Otsutsuki, the reborn primitive humans had the unique power to perceive natural energy from scratch, became ninjas who could jump around, and formed the unique culture of the Five Great Nations. During the Warring States Period, a stone statue suddenly collapsed out of thin air—— An onion popped out of it. He invented the walkie-talkie out of thin air and further developed it into a smartphone, making the people in the mountains unemployed. He also invented radar, which made most sentient ninjas unemployed. He also took out guns and ammunition, making most of the people who made the explosives even recognize them. His home is warm in winter and cool in summer. It has lights, powered waterwheels, aircraft, tanks, cannons and even atomic bombs, which have driven the country's economic development to lead the world. A large-scale unemployment scene for ninjas ahead. Onion said: What kind of ninja do you want to be? Technology is the primary productive force. Come and learn mathematics, physics, and chemistry from me. Ordinary people can become ninjas in seconds, and they are not afraid of big wooden barrels. Cp: Si Qian (I love this pair) Comprehensive comics: Naruto, Dr. Stone, Demon Slayer Intention:666