Unknown danger is lurking in the inexplicable harbor. A text popped out and told Fu Anan that this was a survival game. She thought it was just a dream, but the game told her that if she didn't follow the rules, she would die and that if she didn't survive the game for more than thirty days, she would also die. Facing the unknown and dangerous cruise ship and floods that swallow everything, how would Fu Anan survive various natural disasters and schemes at the resource-strapped situation?