Sober into Sinking

[Ploy, evenly matched, empty, no cp] The bright and poisonous mermaid queen Bai Yu (one body with multiple souls) vs the reincarnated prince Jiang Yuexiao The chess player uses the four realms and eight wastelands as a chessboard. Anyone in this chess game may be a chess piece. Who is the chess player between the two players? ——— The world was originally divided into four realms and eight wildernesses. The eight wildernesses outside the four realms are equal. The four realms are headed by me, the sea realm. And I am the only holy emperor of the sea realm. My father is the greatest mermaid emperor of the sea realm. However, due to the fall of the first mermaid emperor at the beginning of the chaos, the sea realm has been unable to set foot on land. It has also become a barrier that separates the three realms from the inside and outside of the sea realm. It has also become the weakness of the sea realm. —— After five hundred years of training, Bai Yu wanted to break through the barrier that trapped the sea world, and began to look for a way to finally come up with this proverb: Spirits from all directions appear, and nothingness appears. As long as you get this power, there will be no weakness in the sea world. Just when I was about to start implementing it, I was forced to sleep for three thousand years. During these three thousand years, another person took my place. I recognized her, Lai Yu, the eldest daughter of the demon world. Who sent her soul into my body? When I wake up, I will be 3,900 years old. How can I find the great artifact that has changed in the four realms and eight wastes... Why not let the chess player lift the curtain on the past for this conspiracy...