Radar Signal Disappearance

"Master, looking at the design of this drone, it appears to be a classified model, isn't it?"

"Don't glance around, and don't speak of it. Let's pretend we know nothing and get on with refueling quickly."

"Master, where's the refueling port?"

"It's... right there."

"I see it."

Once they spotted the refueling port, the young man fetched a professional refueling gun and began refilling the drone.

"Master, why did this drone come here to refuel?"

"Don't ask too many questions. Tonight, we're simply watching TV in the duty room, haven't left anywhere, and haven't refueled anything, got it?"

"Don't worry, I'm just having a chat with you here. I won't know a thing once I leave."

"Remember what you just said."

The master and apprentice continued refueling the drone while chatting casually.

After a while, the refueling vehicle displayed that there was no more fuel.

"Master, we've run out of fuel."