The Future of Life at Sea

In the future world, due to the greenhouse effect, 70% of the world's land will be covered by rapidly rising sea levels. Sea water is flowing back, supplies are scarce, resulting in frequent disasters, and the land area available for people to live is getting smaller and smaller. Seeing the competition for resources on land intensifying, it is hard to get tickets for cruise ships or warships that can avoid shipwrecks... Purpose: The male and female protagonists create a new era in the future