Emperor Sclanya took nearly two hundred years to unify all the Nagas, and made them abandon their faith in other divine beings, only allowing them to believe in himself. Following that, he spent nearly six hundred years defeating the kingdoms and tribes of other sea creatures, as well as the Mermaid Empire, which had strength equal to that of the Sclanya Empire. Ultimately, he became the overlord of the ocean, enslaving a variety of fishmen, aquatic elves, mermaids, and many other sea creatures.
At that time, the Naga Empire occupied more than half of the oceans in the Prime Material Plane. The remaining areas were mostly extremely harsh environments, such as the northern Ice Sea (known as Windward Sea to land creatures). Not only that, the Sclanya Empire also occupied the vast majority of the coasts around the continents and gradually eroded inland areas.
