A tsunami caused by a disaster impacted the world's landmass into a new shape. A group of scientists who foresaw the tsunami disaster created a new race of people who are strong and can live underwater - mermaids, in order to continue the civilization of the earth. But scientists did not expect that human beings were not extinct in the tsunami. The surviving humans continued their almost interrupted civilization in the New World, and were incompatible with the mermaid clan. Two hundred years later, mankind, the leading civilization, won an overwhelming victory in the struggle between the two races, driving the mermaids into the deep sea.
This story begins when a mermaid leader named Gore wants to blend into human society and learn from human civilization to reverse the situation.
Using the setting of "Ruoyu", it tells the love story between Qin Yu, the youngest daughter of Gore and Qin Haihang, and Messi, Catharina's deputy. That's probably it. When writing online, chicken blood comes up faster.