100 Days My Prince Episode 15

In episode 15 King Neungseon admits that his wife was an obstacle because she was a relative of the previous king, but he insists that he had no idea Minister Kim planned to murder her. Yul is finally able to visit Hong-shim early in the morning, and he teases that she must not be sleeping well out of longing for him. The Crown Princess and Lee Yool spend time with each other that night in his room. Lee Yool reveals that he has another woman he's in love with. Lee Yul comes across a locked shed and finally discovers the identity of his assassin: the brother Hong Shim had been telling about waiting for. He searches the rooms and quickly realizes that the assassination is all but a farce, for the Prince to walk around the residence undetected. Yool tells his father that he needs a sneaky plan because CE is sneaky. The King asks him if he can help him as a father. Yool learns that the assassin who worked under Kim Cha Un and tried to kill him is Hong Shim's brother.