The Black Tidal Sea was said to be uncrossable. Thus, many brave experts pushed their luck and be the first to cross it. Unfortunately, those who tried to cross the sea never came back with the exception of Han Li. Not to mention the monsters lurking here, the violent waves were also there enough to kill even a monarch.
"Rumble!" The tidal sea was very turbulent. Usually, it's calm yet scary. But this time, it's violent and frightening. It kept banging against the thick wall barrier which protected the Nine Heavens from its atrocities.
Jin Rou walked casually despite the aggressive nature of the tidal sea. He knew the mysteries of this place like the back of his hand so there's no issue in strolling like this. Furthermore, he had experienced this for so many times so it's much easier to do.