A massive tectonic movement causes global sea levels to rise by 3,000 meters, destroying land-based civilization and transforming the world into a deep-sea apocalypse. The only safe havens are high-strength vessels or a handful of high-altitude locations. The male protagonist is reborn just one hour before the world-ending tsunami. He cuts ties with his parasitic family and kicks them out of his life. Starting with just one boat, he sets out to build an invincible kingdom at sea.