In 2001, he stepped foot into stage acting, debuting in the musical 'The Rocky Horror Show.' However, his breakthrough arrived with 'White Tower' in 2007, while the success of 'Coffee Prince' that same year became a turning point in his journey. Despite immense acclaim, he delved into arthouse films such as 'Night and Day' (2008), 'Lost in the Mountains' (2009), and 'Our Sunhi' (2013) to continue to redefine his craft. Throughout the 2010s, he made his presence known through numerous films and shows, becoming a household name.