The Year 3033.

New, more durable silver trains have been given the technology for flight.

Kyungsoo and his friends are boarding the Train for Korea and make a stop at Hong-Kong.

"I'm kind of hungry..." 

The squinty, old aged Asian woman smiled at her guests at the hotel and offered them a tray of delectable foods.

.......

"She tricked us." 

The twelve men eyed the dark surroundings and noticed the walls of ancient tombs encompassing their views.

"Where are we?"