Soliton no Akuma

In the future, tensions are rising between Japan and China. The jewel of humankind is the new Ocean Techno Polis, a man-made city which floats above the sea. One day, a mysterious catastrophe destroys a Taiwanese submarine followed by the entire city of Ocean Techno Polis. One of the engineers of Ocean Techno Polis, Kurase, must race to rescue his...