Choi Kyu-Sok was born in Changwon, Korea. He graduated in comics from the Sangmyung University and created alternative comics for newspapers and magazines, as well as the album 'Nouilles Tchajang'. He lives in Seoul, where he is a teacher in animation techniques. He is a member of the Metamorphoses collective with Byun Ki-hyun and Suk Jung-hyun. His work, including the album 'Le Marécage', has also been published in France by Casterman.