Season 1

A traumatic childhood experience leaves Cha Do Hyun, suffering from memory loss and dissociation. The latter has resulted in the creation of seven distinct personalities. Wanting to regain control over his life, he asks Oh Ri Jin, a first-year psychiatric resident, to help him, but she eventually falls in love with one of his personalities. Ri Jin’s twin brother, Oh Ri On, a famous mystery novelist, investigates Do Hyun and his family.

1. 

   1. I don’t even know yet… how many persons are there living inside me.

   2015-01-07 · 61m

   Do Hyun realizes he has another side within him and recognizes that this is multiple personalities.

2. 

   2. You can never forget my different eyes!

   2015-01-08 · 61m

   Even though Ri Jin is flustered by Do Hyun's complete change into Se Gi, Ri Jin rushes him to the hospital.

3. 

   3. If Se Gi approached Oh Ri Jin with the intention of getting rid of me…

   2015-01-14 · 60m

   Perry Park rushes to the scene and saves the damsel in distress from Ahn Gook. Together, they flee the scene.

4. 

   4. Just continue living like that, as if you’re not there.

   2015-01-15 · 61m

   Do Hyun's new personality emerges, and he's amazed that it's a young child.

5. 

   5. Try to recall, what happened between you and that lady?

   2015-01-21 · 61m

   Remember what happened on that day. Se Gi, after capturing Ri Jin, asks her to put Do Hyun to sleep forever.

6. 

   6. Who are you?

   2015-01-22 · 61m

   Do Hyun can't stop thinking of Ri Jin. Se Gi gets so jealous that he warns Do Hyun to stay away from Ri Jin.

7. 

   7. If you want to save me so badly, then you shouldn’t be late.

   2015-01-28 · 62m

   Tae Im asks Chief Ahn why Do Hyun returned to Korea and Chief Ahn is left in a quandary.

8. 

   8. You must not lose Yo Na at any cost!

   2015-01-29 · 62m

   Ki Joon proposes to Chae Yeon, but she's angered by his manner. Ri Jin agreed to be Do Hyun's secret doctor.

9. 

   9. Turning the fate into destiny... that’s my third mistake.

   2015-02-04 · 62m

   My third mistake was my destiny. Ri Jin meets all of Do Hyun's personalities in one night.

10. 

    10. The memory that only you can remember... am I there inside it?

    2015-02-05 · 61m

    Se Gi declares total war on Do Hyun and Jeon Myun while Ri Jin remains at the mercy of Se Gi.

11. 

    11. Show me and persuade me with your charms.

    2015-02-11 · 61m

    Tae Im is shocked by seeing the video footage from Joon Pyo's hospital room and subsequently faints.

12. 

    12. If you did it, then I will do it too. Because you’ll become me soon!

    2015-02-12 · 62m

    Do Hyun learns later what Se Gi has done and falls into despair. Chae Yeon is all the more shaken by Do Hyun.

13. 

    13. It’s Ahn Yo Na’s world from now on! Oppa~!

    2015-02-18 · 62m

    Yo Na, Do Hyun's other personality, comes out and kisses Ri On on his cheek. Do Hyun finds Seo Yeon's photo.

14. 

    14. I’ll find out about everything that had happened!

    2015-02-19 · 60m

    I'll find out what happened! Do Hyun spends a merry night with Ri Jin's family and regains his spirits.

15. 

    15. Living the rest of my life to atone for the sin won’t be enough; you’re the person covered with the wounds.

    2015-02-25 · 61m

    Do Hyun begins recalling his lost memory and Ri On decides to look into who masterminded Ri Jin's kidnapping.

16. 

    16. I will remember this for a long time.

    2015-02-26 · 61m

    I'll remember for a really long time. Do Hyun goes on a trip with Ri Jin on the winter train.

17. 

    17. Please don’t hit Do Hyun!

    2015-03-04 · 60m

    Do Hyun and Ri Jin falls in shock as they remember the past. And Do Hyun learns about the fire accident.

18. 

    18. Let’s run away..first, from the terrifying memories.

    2015-03-05 · 61m

    Let's run away from the terrifying memory. Ki Joon begins to collect all kinds of information about Do Hyun.

19. 

    19. Who would despise those two people the most?

    2015-03-11 · 58m

    Ki Joon and Chae Yeon are surprised to learn that Do Hyun has multiple personality disorder.

20. 

    20. Should we open the bag?

    2015-03-12 · 60m

    The hidden personality of Mr. X, along with Na Na, reflects Do Hyun's healing process.