 The earthquake, which struck Tokyo, has also struck a sunken Osaka, Nagano (engulfed by massive lava flows), Nagoya (destroyed by another earthquake) and Sendai (inundated by a series of tsunamis).Yuki Tatsuya, Onodera's fellow submersible pilot, dies in an attempt to activate the warheads from a central module.Onodera takes his place using an old submersible brought out of museum storage and spends a night with Reiko before the operation.