 In 2013, Kang starred in "Incarnation of Money", in the role of a prosecutor with ties to a loan shark.Then in 2014's "Big Man", he played a "good-for-nothing" orphan who is tricked into thinking that he is the long-lost eldest son of a wealthy tycoon's family, when they only want to harvest his heart for a transplant.Kang and Yoon Jin-seo shot the gangster love story "Heartbreak Hotel" in Los Angeles and Las Vegas, and the indie was released in 2015.