As the enigmatic Michishio departs once more on its scheduled route, a new group of young travelers steps aboard what looks like any ordinary commuter train. Conductor Seiji takes charge with his specialized skills, overseeing the subtle shift that turns the carriage into something far more isolating. The passengers soon sense the change as the vehicle activates its hidden function, drawing them deeper into an unexpected regimen of preparation. Whispers of vanishing riders gain fresh urgency amid the journey's unfolding events.
