(Time travel + imagination + campus + fantasy)
The little mermaid was executed by her tribe for running away, and her soul passed through the body of the human girl Xia Tian. He discovered that his Haizhu was divided into two parts by humans, existing in the bodies of the girl Xia Tian and the male protagonist Li Muyan, respectively, who had passed through his soul. As a result, the two of them fell into a coma when they were a little farther apart. The little mermaid tried her best to separate the two. While she was experiencing human campus life, she was looking for her mother.
On the other side, the human Xia Tian traveled to the mermaid Lin Zi. In an uninhabited bay, she finally met her netizen Lin Mo, who was also a mermaid. It turns out that it was the mermaid brother's idea for the two to exchange souls. The two also fell in love with each other while getting along.
At a concert, Xia Tian recognized her mermaid mother who had turned into a human. The mermaid mother noticed the aura of her mermaid daughters on Xia Tian and Li Muyan, and kidnapped them to interrogate them about the whereabouts of the little mermaid.
Xia Tian took them to the bay where she had been imprisoned for three years, and discovered the secret of the exchange between the two. The mermaid mother was seriously injured because of the mermaid father, but the mermaid clan refused to save the mermaid clan and wanted to destroy the mermaid clan...
