Not much is known about Supreme Ocean Palace. It is one of the Four Great Sacred Grounds.
Background - Back when the Supreme Ocean Palace hadn't settled down, they found a source of great darkness lurking at the coast of the sky profound continent. They decided to make it their mission to keep this darkness in check, and therefore created the most powerful barrier formation known to the sky profound continent. Unknown to the supreme Ocean Palace, the source of great darkness actually came from one of the two most dangerous weapons in the entire primal chaos universe.
Ji Qianrou - he acts like a girl
Mo Chenfeng - grand Elder