The Mermaid Is Delicate, and the Mad God and the Merman King Fight Over Her

Just after the college entrance exams, Xu Xia turns into a mermaid in front of her entire family.

Her parents call her a monster and report her to the police, planning to send her to a research institute.

She jumps from the eighth floor, but Shen Qing, who has a crush on her, hides her in his private swimming pool.

Before long, seawater floods inland, and the dead grow gills and crawl ashore. The entire country falls into chaos.

The Special Affairs Administration comes to her door with nothing but a contract:

"Comrade Xu Xia, Country A needs you to go into the sea and find out what is happening. Whatever you need, Country A will do its best to provide."

Xu Xia looks down at the contract. "Weren't you going to dissect me before?"

The director of the Administration sighs, deeply troubled. "Things are different now. Humanity is on the brink of extinction."

From then on, she spends some time deep-diving with Mo Xuan, a black mermaid, to investigate the ocean floor.

At other times, she returns to shore to report what she has found, while also fending off Shen Qing's silent attempts to claim her.

Mo Xuan: "You homewrecker! We registered our marriage in the mermaid kingdom a million years ago!"

Shen Qing pushes up his glasses. "The mermaid kingdom has fallen, and she doesn't remember you. Naturally, that marriage doesn't count."