There have been many incidents to show that Seung Hee is Jae Hee. Likewise, there have been incidents to prove otherwise. I personally think she is Jae Hee, but there is always a chance that she isn’t. Firstly, from the first few episodes, the bracelet Hoon gave to Jae Hee in the beginning was in her possession. She put it on Soo Hyun’s mother’s wrist and was upset when Hoon found it. She was equally upset when she broke it, even though she covered it up. Also, when she was talking to Agent Cha, Cha said he created Han Seung Hee. He could always be referring to something else. The medical records show that one of her kidneys are a little different than the other proving a transplant. Although there is no scar from her surgery, she herself said that she got surgeries afterwards to cover it up.
She always seems to be defending Hoon and wary of the plan. Whenever she was talking to Hoon she seemed sincere, although it could just be part of the act. When her and Hoon were caught trying to escape, Agent Cha congratulated her for deceiving Hoon, but at the same time he threatened her that he could easily kill him and her. She also hid away Hoon’s mother because she knew that they were going to use her against him. She came up with a possible counter plan to save both her, Hoon, and Hoon’s mother. Also, whenever the Prime Minister, the bodyguard, Agent Cha, and others immediately involved in the plan talked to or about her, they acted as though she was Jae Hee.
She always seems to be defending Hoon and wary of the plan. Whenever she was talking to Hoon she seemed sincere, although it could just be part of the act. When her and Hoon were caught trying to escape, Agent Cha congratulated her for deceiving Hoon, but at the same time he threatened her that he could easily kill him and her. She also hid away Hoon’s mother because she knew that they were going to use her against him. She came up with a possible counter plan to save both her, Hoon, and Hoon’s mother. Also, whenever the Prime Minister, the bodyguard, Agent Cha, and others immediately involved in the plan talked to or about her, they acted as though she was Jae Hee.