Before Zhang Qiling headed to the South China Sea, he encountered a remarkable woman. No, to be precise, she was the one who encountered him: Zhang Qiling. Mo, the third-generation head of the Yu family, bears the responsibility of ensuring her family’s rise and fall. Since the founding of the nation, she has lived in seclusion on an underwater island in the South China Sea, protecting the peace of the undersea world. Recently, strange disturbances erupted on the surface, threatening her people’s safety. So Mo led a group of her subordinates out to investigate, never expecting to meet the trio who were about to dive beneath the sea. What kind of story will unfold between them?