As soon as the baton came out, the spark appeared between the two metal tubes. The conspicuous current seemed terrible, and a very clear current sound could be heard in the underground garage.

The baton is wrapped in an anti-scanning bag, and neither infrared scanning nor metal sensors can detect the contents of the bag, which is why men enter the airport unharmed.

But that's not surprising. Men know they've made mistakes, so it's not surprising to bring something to defend themselves.

"Don't come here. If you come here, believe it or not, I'll kill you!" The man said ferociously that his baton had been modified. There were two gears...