As of my last update in early 2023, there isn't a widely known author by the name Hyeseung Song in English-language literature or media. It is possible that Hyeseung Song may be an author who is primarily active or recognized in another language, has published under a different name, or is an emerging author who has started gaining attention after my last knowledge update. If Hyeseung Song is an academic, a writer of non-fiction, or has a presence in a niche literary community, there might be more specific information available in those circles. For an up-to-date description of Hyeseung Song and their work, I recommend looking for recent publications or current biographical notes from literary directories, academic institutions, or publications where they have contributed.