Legend has it that in the Three Realms, there is such a story:
In the beautiful and mysterious deep seabed, there is a crystal palace in which thousands of mermaids live. In the entire mermaid kingdom, there are noble mermaids and slave mermaids. As the name suggests, they must have different status and treatment.
Unfortunately, the noble mermaid and the humble slave mermaid fell in love with the son of Poseidon at the same time. At that time, there were regulations in the water realm that Poseidon was not allowed to fall in love with mermaids, so they were both punished.
The son of Poseidon and the noble mermaid were deprived of their memories and demoted to the mortal world to become mortals, but the slave mermaid was cursed: she only had three chances, and each time she had to shed mermaid tears before she was twenty years old, otherwise she would die. If she fails to shed mermaid tears three times, then she will vanish into ashes and disappear forever...
Intention: