The Legend of Hei: Lanxi Town is a part of the 'The Daily Life of the Immortal King' universe, an anime series based on the popular Chinese web novel of the same name. The series follows Wang Ling, a high school student with extraordinary powers, as he navigates life while trying to keep his strength in check. The show blends action, comedy, and fantasy elements, providing an entertaining journey through Wang Ling's everyday challenges.