After breakfast everyone who was at least quasi-emperor realm and above had all left together. They couldn't leave through the gates of the Black Cloud Academy or it would cause commotion seeing each and one's identity. So they had to leave the area through teleportation with the Moon Goddess. Everyone's preparation had been done ahead of time. Now that they had left the Black Cloud Academy, through teleportation. They had instantly reached the location of the Blood Sea.
The Blood Sea is as its name suggests. It's a wide sea which is crimson in color. However, this is only in color and didn't mean that the red sea was actually real blood. It's just for some reason the sea in this area had the same shade of blood itself. Even the sky of this area had the shade of crimson, making the whole area with the shade of crimson fitting the name of the Blood Sea.
