8 years after Eunji's leave to London, Korea's Seoul Medical University Hospital have called her back as a last year resident. 8 years ago, she faced the death of her fiance, Nam Woohyun, and her good friend, CAP. She had moved on from the past, but she made sure she won't make the same mistake ever again. Kinda leaving a trauma in her.

It has been 3 years since the Crucifix's incident and Im Yoona went to the UK under Lee Gikwang's referral to continue her studiesand finally become a skilled Criminal Psychologist, Criminal Profiler, and detective. With Song Dongwoon's help, she was able to recover from her past incident.

"Don't look for me." He told her, while she was trying to hold onto him, tears running down her cheek. He took a step forward and when she tried to chase after him, he disappeared to where he came from. While sobbing, she cried out, "You promised to stay with me an