On the western ocean of the Holy Land Continent, there is an island called the Demon-Suppressing Abyss, which is said to suppress the primitive witch who tried to destroy the world in ancient times.There will be basically no visitors in the Demon Suppression Abyss for thousands of years, because you will encounter a large number of tentacle creatures in the ocean on the sea, and you can only pass through through flight.However, the sea area near the Demon-Suppressing Abyss is protected by magic circles that prohibit floating, so it is impossible to pass through by flying.There is a not-so-large freshwater lake in the deserted Demon Suppression Abyss, and the bottom of this freshwater lake is an area separated from the lake water, and the water stays above your head like a sky curtain.