Solo leveling Anime episode 1

The episode begins with a flashback to a brutal battle on Jeju Island three years ago, where high-ranking Hunters fought against a swarm of monstrous giant ants. This introduces the world's setting: ten years ago, mysterious "Gates" appeared, connecting the human world to magical dimensions filled with monsters. Certain humans awakened supernatural powers to fight them and are known as Hunters, ranked from S (strongest) to E (weakest)