The sound of footsteps on the train tracks broke the silence in the dark tunnel. The vague noises of human chatter gradually grew clearer as the footsteps headed in the direction of the exit.
"It's a self-driving train after all. It isn't really that weird if it stops suddenly. Maybe, there is a fault…" The most distinct voice from the chatter was one that was low and mellow. After that person spoke, he laughed, "But, luckily that train broke down, otherwise we wouldn't have helpers!"
Just as that sentence was spoken, the group of people finally walked out from the tunnel. The person leading the group was a LP wearing a tailcoat. He raised his arm and pointed to the street, not far from them, and gave a thoughtful explanation to the teenage siblings and the reddish humanoid, "This area was once a financial district so there are many banks here. We chose this place as a strategic base because it is easy to defend…"
