City: Shoot the Meteorite with One Sword at the Beginning

On February 15, 213 AD, at about 12:30 noon, a meteorite with a diameter of 17 meters and a weight of 7,000 tons hit the earth at a speed of Mach 54! The fastest interceptor missile created by mankind at that time was only Mach 20! There is no way to intercept this meteorite! Human crisis! Earth crisis! Once it hits the earth, the resulting explosion will cause huge earthquakes, tsunamis and explosions! However, when the meteorite passes through the atmosphere and is still 24 kilometers away from the ground, it is about to hit the earth. From behind it, it was penetrated by an unknown object and exploded in the air 10,000 meters high! Later, after research by countless top scientists from the Bear Country, Eagle Country, and the United States, it was discovered that the unknown object that exploded the meteorite was actually... A flying sword? ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.