Jung Sik Jun was born in Seoul, Korea, but was adopted by a Belgian family in 1971, where he got his adoptive name Jung Henin. He studied Latin and Maths before he followed a couple of art studies. During his studies, Jung has his first exploits in the animation field. His meeting with Marc Michetz in 1987 gave him the chance to make some short stories for Spirou and Tintin, taking on his first name as pseudonym.