|Arpeggio of Blue Steel Ars Nova - Cadenza: Due to global warming and rising sea levels in the early 21st century, much of Earth's landmass has been lost. In 2039, fleets of
powerful sentient warships, armed with advanced technology and weaponry, mysteriously appear and devastate the world's naval forces. These ships, collectively called 'The
Fleet of Fog', impose a worldwide naval and aerial blockade, preventing humanity from both traveling the oceans and to other nations.