C319 Black Water Serpent

There was the Ten Thousand Bat Ancient Cave at the foot of the Mulberry Mountain, and below the Ten Thousand Bat Ancient Cave was the Dead Spirit Abyss. Below the Dead Spirit Abyss was the Heartless Sea, and there was the Black Water Serpent in the Heartless Sea. And in the Heartless Sea, there was the Blood Drop Cave, and the Blood Drop Cave was our target this time