Cha Young Min top cardiologist in Eunsang University Medical Centre. He is known to be a genius doctor, but also known for his problematic attitude. Koh Seung Tak has excellent medical knowledge but his lack of surgical knowledge and fear of performing surgeries , joined Eunsang hospital as a first year resident and have not been on good terms since his first day with Dr.Cha. Once day, Dr Cha’s soul was separated from his body when he was caught in a car accident. Desperate to save himself , he accidentally possessed Koh Seung Tak’s body. Dr. Koh can see spirits since his accident when he was 10 years old and have been great at ignoring all the spirits that he sees an hear. With 2 doctors now inhibiting the same body and their difference in personality and medical abilities have put Dr.Cha’s, selfishness and arrogance attitude to the test.. Will Cha Young Min be able to use his own genius to resolve this strange case? And will he be able to wake up from his Coma?

The answer awaits.

The night the future crown prince is born, a twin sister unexpectedly was also born but because of the King's decree to kill the new princess, the crown queen acts fast to make the baby girl pretend to be dead.
Years later, the princling crosses paths with his look-a-like and took advantage of the identical looks to sneak out momentarily. When court maid Dam-i fulfills her duty to the princling, she encounters Jung Ji Un, who is captivated by her and slowly becomes her friend. But of course as all ill-fated drama goes, the twins do another switch and because Dam-i was not meant to exist, the actual prince gets murdered in her disguise, leaving imposter prince Dam-i to fast track her mannerisms as prince Lee Hwi.
10 years later, during a royal hunt, physician Jung Ji Un is desperate to find herbs to save his Samgaebang clinic and shop assistant, but instead crosses paths with prince Lee Hwi while trying to hide her identity from tending to her wounds from a murder attempt. Lucky for both, they leave the scene unscathed and vouch to never cross paths again for the sake of the prince's true identity, or so they thought.
Like the butterfly affect, Prince Lee Hwi's feminane features and sometimes her actions start rumours around town thanks to Prince Changwon, the uncle with evil intensions and bad temper. Situations also didn't help when Jung Ji Un is appointed tutor to the Crown Prince, this opening unfulfilled feelings from the past.
Watch as Dam-i, or rather fake prince lee hwi survive the royal games, whilst trying to keep her affection towards Tutor Jung at bay.

Shin Chae Kyung is the daughter of a court official who's extremely loyal to the King YeongSangGun. She gew up with her nanny in a small village far away from her parents, not knowing that her parents hid her away to protect her. One day she decided to travel to her parents without them knowing, and along the way she bumped into Prince Jin Seong who's out and about with his friends checking girls out playing by the riverside. Chae Kyung decided to ruin their plans, and hence Prince Jin Seong went chasing after Chae Kyung. In the midst, her wallet got stolen so she is left with no funds to continue her journey. She met King YeongSangGun who was soaking in the river to cool off his head. King YeongSangGun is the elder brother of Prince Jin Seon. He is known to be a power drunk ruler where he would go to extreme lengths to heep his Throne, especially from his younger brother Lee Yeok( Prince Jin Seong). Chae Kyung later become friends with lee Yeok and fell in love with him.

Watch to find out how Prince Jin Seong and King YongSangGun relationship unfilds and the series of sacrifice Chae Kyung have to make for herself and Prince Jin Seong.