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"Calling the Heavenly Central Control Tower, Hell King No. 1 setting out for a mission. Please open the Circular Barrier."
"Control Tower received. The pathway will open in ten seconds. Please pass through within the allocated time…"
As the control system made the call, a diamond-shaped fighter aircraft over 50 meters wide and over 60 meters long, constructed entirely of silver unknown metal and exuding a sci-fi style, slowly lifted off the ground.
Simultaneously, far away in the sky, the gray mist that shrouded Heaven and Earth split open, revealing a crack.
Boom!
The silver fighter aircraft burst through the air, and with the energy engine's blast, it accelerated to supersonic speed in an instant, leaving a long blue tail and dashing out of the confined space.
Inside the aircraft, Jack Clark sitting in his seat marveled at the endless misty pathway receding outside and the folding spaces he passed through, amazement shone in his eyes.