On April 19, 2039, Haicheng was attacked by an unknown underwater creature. The entire city was submerged, and many island nations vanished one after another as floods gradually swallowed the continents.
Yu Xiang was an ordinary student at Haicheng University of Science and Technology. When the army requisitioned him to help fight off the water monsters, he was assigned technical work maintaining the energy supply. In this era of war against water monsters, in a crowded and fragile city, the inscrutable rich girl Feng Luoluo and the passionate science student Ye Xin found a little warmth amid the ruins. Here, people still lived on, loving and being loved.
