In the MBC weekend drama 'Dr. Jin,' Kim Jae Joon is countless used by Kim Eung Soo over and over again.

on the 17th episode of 'Dr. Jin' that airs on the 21st of July, the rivalry between Lee Ha Eung(Lee Bum Soo) and Kim Byung Hee(Kim Eung Soo) is heightened up, creating more tension between the two.

Byung Hee selects Kim Kyung Tak(Kim Jae Joong) as he last secret weapon to bring down Lee Ha Eung.

He is planning to dangerously order "Go to the Queen's quarters tonight and steal the King's seal" to Kim Kyung Tak.

In the previous episode of 'Dr. Jin' Kim Kyung Tak was ordered by his father Kim Byung Hee to kill Lee Ha Eung. Even though he failed the assassination, Kyung Tak is willing to do anything for his father and the family to get his fathers approval.

If Kyung Tak is caught, their family and his fathers political place is highly in danger.

The audience is anticipating what Kyung Tak who knows that he is being used by his father and the family, will decide in the end.