第1章 01：《换魂》 

01: Soul Exchange

[Slow pace, speeds up after the end of "Subway"]
  ["Unknown" launched a game, players please enter]
  Players originally thought that this was just a game with rich rewards based on the past, until...
  Trapped on the edge of the human world and the underworld, a train carrying countless grievances suddenly appeared on the Hibiya Line during the morning rush hour;
  the long-forgotten demon sword found a new host and was on the verge of losing control;
  the seal formation buried deep in Mount Fuji was crumbling, magma was spewing, and the evil spirit opened its eyes.
  The silently annihilated past tears open the dimension of reality and returns to the world they covet.
  The only ones who can fight against the lost world are the players.
  As for Toyama Shin...he just wants to use the players to speed up his game...