Season 1

Top star Momo falls into a coma after an unexpected accident. Her mother, Ran-hee, proposes a shocking solution to Momo's lover, neurosurgeon Ju-shin, to transfer Momo's soul into her own body through a brain transplant…

Six months before Momo's accident, Yong-joong learns that Ba-ra is the child he met 16 years ago. Meanwhile, Ju-shin pressures Momo to marry him. Although she resists, Ju-shin sends expensive pieces of jewelry and promi…

Momo goes missing after a scuba diving accident. Ba-ra, a journalist, senses something suspicious about the case, while Yong-joong also feels an unsettling vibe from Ju-shin. Meanwhile, Ba-ra reveals the engagement of J…

Ran-hee's lifeless body is taken away, and Ju-shin mourns for Momo. The funeral proceeds, but those around her cannot believe she would take her own life with no apparent reason. Meanwhile, Momo, who now carries Ran-hee…

Ju-shin begins to feel a growing sense of unease toward Ran-hee, who now has Momo's appearance. Over a meal with Jin-ju, Ju-shin tries to gauge her feelings. Meanwhile, Yong-joong confesses his feelings to Ba-ra, and Ba…

Ran-hee grows increasingly irritable as she tries to get closer to Ju-shin. However, Ju-shin seeks out Jin-ju, shows interest in her, and urges her to undergo the surgery. After meeting Gwang-cheol, her supposed biologi…

Ju-shin successfully transplants Jin-ju into Momo's body. As she begins life as Momo, her biological father searches for her, waiting and refusing to believe she's dead. Meanwhile, Jin-ju offers Ba-ra a job to work by h…

As Ju-shin looks deeper into Ba-ra, he finds himself increasingly drawn to her and even makes her an unthinkable offer. Ba-ra accepts Momo's proposal, quitting her job to stay by her side, while Jin-ju's father continue…

Jin-ju seeks revenge on Ba-ra and tries to seduce Yong-joong while in Momo's body. Meanwhile, Gwang-cheol continues to appear before Jin-ju, who now inhabits Momo's body, pressuring her at every turn. Amid it all, Ju-sh…

As Jin-ju reels from Gwang-cheol's shocking visit, she cuts ties with Ju-shin and turns to Yong-joong, with whom she shares a past. She urges him for his full support, and they go to a karaoke room for drinks. Meanwhile…

Yong-joong warns Ba-ra to keep her distance from Ju-shin, but the two only grow closer. As Ju-shin continues to pursue Ba-ra, Jin-ju learns that Ju-shin had proposed to Ba-ra and gets overcome with fury. Suddenly, panic…

Yong-joong tells Ba-ra they should set a wedding date, but Ba-ra leaves him and heads to Ju-shin's house. Meanwhile, Gwang-cheol begins volunteering at Nua General Hospital, and Jin-ju is delighted when she hears someth…

Ba-ra is devastated to learn that Jin-ju is actually Momo and confronts her with a final plea. Despite this, Jin-ju and Yong-joong go through with their wedding. Meanwhile, Ju-shin asks Ba-ra if she would consider under…

Yong-joong and Ju-shin discover Ba-ra's pregnancy. After seeing Momo wearing Jin-ju's earrings, Gwang-cheol's suspicions deepen. At Paul-kim's house, Ba-ra stumbles on a picture that looks just like her. Meanwhile, Yong…

Cornered and desperate, Jin-ju tries to convince Ba-ra to undergo the brain swap. Meanwhile, Yong-joong promises Ba-ra eternal love, and Jin-ju begins to reveal the full truth behind the brain change to Gwang-cheol. Lat…

Gwang-cheol is devastated by Jin-ju's death and, consumed by rage, confronts Ju-shin. As Yong-joong mourns Jin-ju, Paul Kim shocks James with news about his long-lost daughter. Meanwhile, Jin-ju appears at the funeral a…