Kwak Jaesik received a Ph.D. in Engineering and currently works for a chemical company.

He won the KAIST Literary Award twice while he was in college and he started writing in 2006 when his short story, Aria of Rabbits, was adapted for TV drama. He publishes a short story on the fantasy literature webzine, Mirror every month.
Kwak has writen five short story collections, including  Aria of Rabbits, The Planetary Ferris Wheel, and Scariest Tales of Event, two novels, including A Fraud’s Heart Beats Slowly, the writing guide book, Managing to Write for Those Who Never Finish Their Writing, a humanities book that deals with traditional Korean monsters, Korean Monster Encyclopedia, and the science book How to Survive in the Robot Republic.