On KBS2TV drama special "I'll Die Soon" broadcast on March 16th, Woo Jin (played by Oh Jung Se) got diagnosed with cancer.
Woo Jin wrote a resignation letter at the early age of thirty five and rented a hotel suite to reflect back on his life. He meets his first love by coincidence and realizes that the reason behind his separation is him. The answer that came back to him was, "Back then, you only knew about yourself. I felt bad."
In the end, the erratic girl (played by Kim Seul Ki) who wanted to live life to the fullest comforts Woo Jin as he is positively affected by her positive energy.
At Kim Seul Ki and Oh Jung Se's acting in "I'll Die Soon", Netizens said, "I'll Die Soon Oh Jung Se and Kim Seul Ki, acted so well." , "I'll Die Soon Kim Seul Ki, so cute." "I'll Die Soon, how much power does Oh Jung Se get from meeting Kim Seul Ki" and other responses.