Juin is single and, like many K-pop stars, steers clear of talking about his relationships, which are typically subject to strict management controls for image reasons. He is still in his early twenties and is keen to advance his Seventeen careers.
Jun turned from acting to music partly out of curiosity and partly because he felt stuck in a rut while working in China. He practiced Kung Fu as a child, so he is familiar with it. In his free time, he enjoys singing and playing the piano. He is in charge of waking everyone up because he is the Seventeen members that awakes first. He also likes to read novels, and he hopes to have a lot of fans in China and Korea.