JYJ's Kim Jae Joong has finished his final drama role before enlisting. The action-packed, fast-paced drama "Spy" concluded this week with Kim's character finding a solution that allowed his family to live. In the final episode, plenty of lives were lost for the greed of a few but the drama sped toward a satisfying conclusion that allowed the good guys-and even some of the bad guys pretending to be good guys-to survive and live out their lives peacefully.

Kim found working on the drama to be a very satisfying experience.

"I was so happy working with the great actors in this drama," Kim said in an interview with asiatoday.co.kr. "It was so good I even wondered when I would ever be able to work with such great actors again. I am so sorry to let go of the drama that I am feeling 16 episodes were too short. Thank you for the support that you have shown until the last episode."

Kim posted behind-the-scenes images of the final days of shooting on his Facebook page. One of the images included his making a heart sign with his hands behind co-star Jo Dal Hwan, who played his loyal NIS colleague. His other co-stars included Go Sung Hee, who played his girlfriend, Bae Jong Ok, who played his mother, Yu Oh Sung, who played a North Korean spy, and Jung Won Joong, who played his father.

It's a fitting point in his acting career for Kim to start his mandatory military duty as he won praise for his last two successive drama roles. He played a shiftless gambler in the drama "Triangle." In "Spy he was a South Korean National Intelligence Service agent who discovers his mother was once a North Korean spy.

Kim has both drama and film appearances to his credit, having appeared in the films "Codename Jackal" and "Postman to Heaven," as well as having roles in the dramas "Dr. Jin" and "Protect The Boss."

According to his agency C-JeS Entertainment, Kim Jae Joong will start his 21-month mandatory military service on March 31. And now that his drama role is complete, he plans to spend his remaining days as a free man with family and friends.

He will also spend some time with his fans and stage a special event for them. The 2015 Kim Jae Joong Concert In Seoul - The Beginning of the End concerts will take place on March 28 and 29.