Friend 2 (2013)
17 years after the events of first movie, Choi Sung-hoon, Lee Han Dong's son, who grew up in abusive family, and has fallen to life of petty crime, ends up in jail, same one where Lee Jeong-suk is serving his sentence. Choi Sung-hoon's mother there visits Lee Jeong-suk and begs him to take her son under his protection. Being Lee Han Dong's childhood friend he agrees, and Choi Sung-hoon who never had any sort of proper role model in his life, is quickly swayed by this senior. But what will happen when Choi Sung-hoon learns why is Lee Jeong-suk sentenced in the first place?