In many online archives, "Hikaru Nagi" is listed as a mangaka (manga artist) or doujinshi (self-published) creator. They are known for a specific visual style—often ethereal, with a heavy focus on atmospheric lighting and introspective characters. Their works typically fall into the slice-of-life or subtle romance genres, often with LGBTQ+ undertones. Because these works are not published by major shonen or shojo magazines (like Shueisha or Kodansha), they exist in a gray area of distribution.