
“Chae-rok is someone who is bad at expressing himself. In the 2021 South Korean television series Navillera, which follows the story of a 70-year-old retired mailman (Park In-hwan) attempting to learn ballet and dance Swan Lake despite his deteriorating Alzheimer's condition, Song Kang had to learn ballet for about six months in preparation for his role as Lee Chae-rok, a ballet dancer who struggles financially and works part-time at a café. With his passion for acting, Song Kang will do the best he can for a role. He also looks up to his co-star Jung Kyung-ho ( Hospital Playlist). When asked who are his role models in the industry, he cites Leonardo di Caprio in Titanic, a 1997 American epic romance and disaster film directed by James Cameron, as his first inspiration.

His perseverance, later on, landed him his first supporting role in the 2017 romantic comedy television series The Liar and His Lover, a drama based on the popular Japanese manga Kanojo wa Uso o Aishisugiteru by Kotomi Aoki. Committed to honing his acting skills, Song Kang reportedly turned down an opportunity for him to become an idol before his debut as an actor.
