When deadly warming tears the world apart, heavy rains never stop, and civilization sinks to the bottom of the sea. Su Ran and Chen Wei, a pair of best friends who originally only wanted to go shopping around the world, were accidentally trapped on the second-hand cruise ship "Haiyan" they jointly purchased. This dream boat has become the only refuge in the ocean of the apocalypse.
From ignorantly setting sail to navigating the wind and waves, from avoiding predators to establishing order at sea, they learn the rules of survival in despair. The rational and tenacious Su Ran became the "captain" at the helm, and the cheerful and alert Chen Wei became the "diplomat" who maneuvered around. They rescued surgeon Li Lan, farmer Li Shu and his granddaughter Xiao Yu, recruited key partners, and built the lonely Ark into a floating micro community.
They once broke into the huge maritime centralized forces and stuck to the bottom line in the conspiracy; they also sailed into the deep sea and tempered their souls in loneliness and internal strife. Finally, following a faint signal of hope, they discovered an unsubmerged archipelago, and worked side by side with the islanders to repel the final attack of the sea bully "Sea Overlord".
The heavy rain has not stopped, and the ocean remains flooded. But the "Petrel" is no longer adrift. It transformed into a sharp sword to protect their new home, while Su Ran and Chen Wei grew from fugitives struggling to survive to guardians who ignited the embers of civilization. Their story is an epic about friendship, growth and rebuilding hope in desperate circumstances.
