Yuri is a high school student in the present day. She isn't happy with her life at home or school. One day, she has an argument with her mother and runs away from home. Somehow, when Yuri later opens her eyes, she realizes that she is in the year 1945. She happens to meet Akira. He is a pilot for a kamikaze unit in the military.
Riders on a commuter train get an earthquake warning on their cellphones. Cars lurch as electric sparks fly, people are thrown about and the lights go out. Train 5 passengers awake to find that they are no longer in a tunnel, and overgrown brush can be seen through the windows. People slide open the doors and find that the train tracks end suddenly ahead and behind the car. People's reactions to losing the modern world vary from confusion to alarm to indifference. Where or when are they? Can they survive in this wilderness?