Chang Hyungyun majored in animation at the Korean Academy of Film Arts (KAFA) and graduated from the School of Film, TV and Multimedia at the Korea National University of Arts. He won the Hiroshima Prize at the Hiroshima International Animation Festival for his short animated film Wolf Daddy (2005) and received domestic and international festival invitations and awards for A Coffee Vending Machine and It′s Sword (2007) and My Friend ′Go-ra-ni′ (2009). He later directed his first feature-length animation, The Satellite Girl and Milk Cow (2014), which won the Best Animation Award at the Sitges Film Festival and the Minister of Culture, Sports and Tourism Award at the Korea Content Awards. His second feature-length animation, Ireesha, the Daughter of Elf-king (2018), was invited to the Busan International Film Festival.