Bloody_King_Mizor

Assuming he (Lin Changshun) took at least 1 second to travel 25 miles. We can say that his speed is at least 25 miles per second. 25 miles / s = Mach 117, which is basically the start of Massively Hypersonic (Mach 100-1000). So, of course, if the man in the hat can keep up, it means he is no slower than that.

Assuming it took him 1 second to travel 25 miles. We can say that his speed is at least 25 miles per second. 25 miles / s = Mach 117, which is basically the beginning of Massively Hypersonic (Mach 100-1000). .