Jeong Seol-a is a Korean children’s author known for imaginative stories that mix folklore, fantasy, history, adventure, and contemporary concerns. Her books include Donghae, The Rules of the Game, The Bad Guys, The World of Iru, and the A Ghost Lives in My House series. She is especially interested in transforming familiar Korean cultural elements into fast-moving narratives for younger readers. Han Sang-hee illustrates the series with a lively visual style that gives each ghost and monster a distinctive comic personality. In the second volume, their collaboration expands the supernatural world beyond Korea, bringing local ghosts into contact with international monster traditions while retaining the series’ humor and warmth.