SEE ALSO: Krystal's past letter to late f(x) member Sulli goes viral

Yoochun shared through his agency C-JeS Entertainment, "It feels like just yesterday that I met Han Tae Kyung who fights to protect the president, nation, faith, and justice, and I am really thankful for the days I spent [as him]."

"I am very thankful for and will never forget the methods to tell a more deep and sincere story through my eyes and warm words of advice from the director, writer, and the sunbaenims including president Son Hyun Joo and chief guard Jang Hyun Sung... I respect everyone who work hard for what they believe in. I will join in pain, sorrow, and suffering in light of the Sewol accident. I want to give my condolences to the precious people who we lost. Thank you."

How did 'Three Days' do in your ranking of recent K-dramas?