That Time I Got Reincarnated as a Slime The Movie: Tears of the Azure Sea - Official Dub Trailer

This transcript seems to be from a fantasy anime, possibly "That Time I Got Reincarnated as a Slime: The Movie - Tears of the Azure Sea." The characters are on a vacation, but they sense something is wrong with the place. They believe that if nothing is done, the nation will fall and their people will not endure. To save them, they must awaken the "great water dragon," their guardian deity, who protects all living things in the ocean. The sacred dragon fang is mentioned, and it's stated that the water dragon is revived. A "demon lord" and his pawns are also mentioned as a threat, but the water dragon can never be slain as long as the ocean exists.