An "accident" thousands of years ago allowed humans and mermaids to coexist peacefully.
Time can cover up many things.
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A great war also broke the era of peace between humans and mermaids, but... Why
Will mermaids and humans meet? Everything seems to be so orderly.
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The distance between sea and sky seems to be telling the story of this war...
Yan Zeyi "That is the way for mankind to go towards the rising sun."
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Don't expect "You are so insignificant and I am so helpless. After you and the world forget us, just pretend that we have never been here..."
Intention: Benefits are not eternal.