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Title: 군주 – 가면의주인 / Ruler: Master of the Mask
Chinese Title: 君主-假面的主人
Also Known as: Monarch
Genre: Historical, Political, Romance
Episodes: 40 (30 minutes/episode)
Broadcast network: MBC
Broadcast period: 2017-May-10 to 2017-July-13
Air time: Wednesdays & Thursdays 22:00 (2 episodes back-to-back)


This is a pre-produced drama. Filming began on 2016-December.

Set in the 18th-century Joseon, it tells the story of Crown Prince Lee Sun (Yoo Seung Ho) and his fight against a powerful and wealthy organization Pyunsoo-hwe that controls the country behind the scenes due to its monopoly of the nation’s water supply. With the help of the woman he loves named Han Ga Eun (Kim So Hyun), Lee overcomes adversity and grow as a just ruler.


Main Cast

Yoo Seung Ho as Crown Prince Sado Lee Sun
Kim So Hyun as Han Ga Eun
L as commoner Lee Sun
Yoon So Hee as Kim Hwa Goon
Heo Joon Ho as Dae Mok
Park Chul Min as Woo Bo (Lee Sun’s teacher)

People around Crown Prince

Shin Hyun Soo as Lee Chung Woon
Bae Yoo Ram as Park Moo Ha
Lee Chae Young as Mae Chang

Pyunsoo Party

Kim Byung Chul as Kim Woo Jae
Kim Jong Soo as Joo Jin Myung
Do Yong Goo as Choi Sung Gi
Jung Kyu Soo as Heo Yoo Gun
Kim Young Woong as Jo Tae Ho
Kim Seo Kyung as Gon
Park Ki Ryung (박기륭) as Mr. Jang
Jo Seung Yun

Family of commoner Lee Sun

Park Hyun Sook as Yoo Sun Daek (mother)
Jung Hae Kyun as father
Go Na Hee as Kko Mool (younger sister)

Royal Palace People

Kim Myung Soo as King Yeongjo
Kim Sun Kyung as Consort Yeong
Choi Ji Na as Queen Jeongseong
Jung Doo Hong as Lee Bum Woo
Song In Gook (송인국) as Hyun Suk
Jung Ah Mi as Court lady Han
Lee Dae Ro as King’s eunuch


Jun Noh Min as Han Kyu Ho
Jin Ki Joo as Choi Kang Suh
Kong Jung Hwan
Min Pil Joon (민필준)
Kim Ho Jin
Lee Ki Young
Uhm Hyo Sup
Uhm Seo Hyun
Kim Jong Goo

Production Credits

Production Company: People Story Company, Huayi’s Brothers
Planner: Kim Kyung Hee
Producers: Jung Chan Hee, Bae Jung Hoon, Shim Jung Woon
Directors: Noh Do Chul, Park Won Gook
Screenwriter: Park Hye Jin, Jung Hae Ri

Episode Ratings

    Nationwide Seoul Nationwide Seoul
2017-05-10 1 8.8 (9th) 10.0 (5th) 9.7 (6th) 10.5 (5th)
2017-05-10 2 10.1 (6th) 10.9 (4th) 11.6 (4th) 12.1 (4th)
2017-05-11 3 10.4 (8th) 11.5 (6th) 10.5 (6th) 11.2 (5th)
2017-05-11 4 10.8 (6th) 11.9 (5th) 12.6 (4th) 13.4 (4th)
2017-05-17 5 8.5 (12th) 10.4 (6th) 11.2 (5th) 11.8 (5th)
2017-05-17 6 9.2 (10th) 11.0 (5th) 12.5 (4th) 12.9 (4th)
2017-05-18 7 10.4 (6th) 11.8 (5th) 12.0 (5th) 12.9 (5th)
2017-05-18 8 11.6 (5th) 13.1 (4th) 13.4 (4th) 14.2 (3rd)
2017-05-24 9 10.6 (8th) 10.9 (6th) 11.9 (6th) 12.7 (5th)
2017-05-24 10 11.7 (6th) 12.6 (4th) 13.8 (4th) 15.2 (3rd)
2017-05-25 11 11.1 (7th) 11.7 (5th) 12.1 (6th) 13.2 (5th)
2017-05-25 12 12.3 (5th) 13.3 (4th) 13.8 (4th) 15.1 (3rd)
2017-05-31 13 11.8 (6th) 13.8 (4th) 11.7 (6th) 12.2 (4th)
2017-05-31 14 12.8 (4th) 15.7 (3rd) 13.6 (3rd) 14.5 (3rd)
2017-06-01 15 12.0 (6th) 14.5 (5th) 12.0 (6th) 12.6 (5th)
2017-06-01 16 13.4 (5th) 15.8 (2nd) 13.6 (4th) 14.2 (3rd)
2017-06-07 17 11.6 (6th) 13.0 (5th) 10.9 (7th) 11.0 (6th)
2017-06-07 18 12.4 (5th) 14.0 (3rd) 11.9 (5th) 11.6 (5th)
2017-06-08 19 11.0 (7th) 13.0 (5th) 11.2 (6th) 11.2 (6th)
2017-06-08 20 11.4 (6th) 14.0 (4th) 12.2 (5th) 12.1 (5th)
2017-06-14 21 11.8 (5th) 13.0 (5th) 11.3 (5th) 11.8 (5th)
2017-06-14 22 13.0 (4th) 14.5 (2nd) 13.0 (4th) 13.8 (3rd)
2017-06-15 23 10.3 (5th) 11.3 (5th) 11.3 (5th) 11.3 (5th)
2017-06-15 24 12.0 (4th) 13.2 (3rd) 13.4 (4th) 13.2 (4th)
2017-06-21 25 10.3 (8th) 11.5 (5th) 10.6 (6th) 10.8 (7th)
2017-06-21 26 11.8 (5th) 13.0 (4th) 13.2 (4th) 13.5 (5th)
2017-06-22 27 10.0 (9th) 11.9 (5th) 10.8 (6th) 11.4 (5th)
2017-06-22 28 11.6 (5th) 14.1 (3rd) 12.2 (4th) 12.4 (4th)
2017-06-28 29 9.6 (7th) 11.0 (5th) 10.1 (6th) 10.1 (5th)
2017-06-28 30 11.2 (4th) 13.7 (3rd) 12.2 (4th) 12.3 (4th)
2017-06-29 31 10.5 (6th) 12.6 (4th) 11.9 (5th) 11.9 (5th)
2017-06-29 32 12.2 (4th) 14.5 (2nd) 14.4 (4th) 14.6 (3rd)
2017-07-05 33 12.1 (6th) 12.2 (5th) 12.6 (5th) 13.3 (5th)
2017-07-05 34 14.0 (4th) 14.6 (3rd) 13.6 (4th) 14.5 (4th)
2017-07-06 35 12.9 (5th) 15.2 (4th) 12.8 (5th) 13.5 (5th)
2017-07-06 36 14.7 (4th) 16.6 (3rd) 14.9 (3rd) 15.2 (2nd)
2017-07-12 37 15.5 (5th) 18.0 (2nd) 13.2 (5th) 13.9 (5th)
2017-07-12 38 17.6 (3rd) 20.3 (1st) 14.5 (4th) 15.2 (2nd)
2017-07-13 39 14.4 (5th) 16.1 (4th) 13.3 (5th) 13.5 (5th)
2017-07-13 40 16.0 (3rd) 18.4 (2nd) 14.4 (3rd) 14.7 (3rd)

Sources: TNmS Media Korea & AGB Nielsen Korea

*** Different between TNmS Media Korea & AGB Nielson – Here


Related Photo

(Other Photo from Official Site)

Official Site

Official Trailer
Trailer I
Trailer II
Trailer III
Trailer IV
Trailer (Yoo Seung Ho’s version)
Trailer V
3 minutes preview

Watch Online in Viki.com

Watch Online in Dramafever.com

164 Responses to “Ruler: Master of the Mask”

Pages: « 1 [2] 3 4 » Show All

  1. 51
    Saranglove Says:

    Totally into this drama
    Awww love these duo..their chemistry are just awwww but how come these two still have no kissing scene 😅😅

  2. 52
    Hero Says:

    I’m such huge fan of this drama.. just can’t imagine what will happen next??but I’m totally hoping for kissing scene of these two like other drama …
    Hehehe fighting

  3. 53
    Momo Says:

    Just three words for this drama wow wow wow
    There is Really touching a scene when I see these two leads..it makes me cry too.. acting are just so superb

  4. 54
    Minu Says:

    I’m shipping for these couples
    Plz plz I want more romantic scene of these two
    Lee sun ❤️Ga eun

  5. 55
    Alexandra Says:

    No chemistry between the leads I don’t understand why Korea insist in putting these 15 yrs. olds in love-lines with older men. Still enjoying the Kim Hwa Goon storyline.

  6. 56
    Lisa Says:

    Kim So Hyun is already 18 this year and Yoo Seung Ho is 23, it’s not really much of age difference. It’s the same age gap between Kim Yoo Jung and Park Bo Gum in MDBC.

  7. 57
    Kyu Says:

    Hello may i ask something? If ga eun being a court lady, could she marry the king (real Lee seon) ?

  8. 58
    Jenna Says:

    Woah I’m in love this drama

  9. 59
    Robin lim Says:

    When is this writer ever going to write more love love chemistry for these two leads..

  10. 60
    Sandy Says:

    I really think this drama going to have a big twist 😭😭😭I can’t bear to see Ga eun with the commoner lee sun

  11. 61
    jessieca Says:

    i really love kim so hyun..i want to watch this drama but i am here in the philippines..

  12. 62
    candy Says:

    every episode in this drama is very much exciting and cant wait for the next one.Thank you for this kind of drama and this is a worth watching. Fighting!

  13. 63
    erlina Says:

    Yeay… finally kissing scene… whoaaa
    really ship them..

  14. 64
    Mimi Says:

    Finally kiss😍😍😍

  15. 65
    Jenna Says:

    Omg the kiss really got me butterflies on my stomach
    Plz plz more more romantic scene of these two
    I really love them

  16. 66
    Kim Says:

    Super duper loving this drama😍😍

  17. 67
    Nayam Says:

    Thump up to the lead couple 👍👍
    I really love them ❤️❤️

  18. 68
    Mangali Says:

    My best drama so far
    And I’m big fan of Kim so hyun

  19. 69
    Hannah Says:

    Too many parties in this drama which kinda messing with my head.

  20. 70
    Lisa Says:

    Actually I don’t like Ga Eun’s character. She’s the stubborn one and always acts without thinking the consequences. I think she’s kinda selfish as she pushed Chun Soo away not only once, but TWICE. I get it she wants to reinstate her father’s honor, but girl, your late dad already said it’s not the Crown Prince’s fault. He only did his duty. Plus, the late Royal Concubine also said that Pyunsoo group was behind her father’s death. At which part of her father’s letter and Lady Hee Bin’s statement that she didn’t understand?! And now she broke Chun Soo’s heart again by joining the queen selection process and got into trouble. Just how many times Chun Soo must saves her when she got into trouble?

    And of course, the real Crown Prince, our Chief Peddler would always be by her side no matter how many times she broke her promise and left him. And of course, Chun Soo would hate Hwa Gon just because she lied to him for being Dae Mok’s granddaughter and a apart of Pyunsoo group no matter how many times she saves him and helps him with his mission.

    Don’t get me wrong, I’m not in team Hwa Gon. I think both of them don’t deserve Crown Prince/Chun Soo, even Chun Soo doesn’t deserve Hwa Gon. Well, I think they all don’t deserve each other. There, I said it.

    (I know I’m being so extra, but please don’t feel butthurt with my comment. peace)

  21. 71
    shiro Says:

    I do agree with the comment of #70
    I like Hwa Gon’s character more than Ga Eun’s.
    Hwa Gon is always next beside the crown prince and always helps him more than Ga Eun has done for the crown prince (well, she had saved the prince who fell from the cliff). But I think Hwa Gon did much more than Ga Eun.

  22. 72
    Minu Says:

    Whatever they say
    I love you Ga Eun
    You have ur reason
    Ofcaz she didn’t left him because she wants too it caz the she wants to clear her dad name

  23. 73
    Nayam Says:

    I love this drama ❤️

  24. 74
    Lisa Says:

    OMG thank you for agreeing!

    As far as I’m concerned, well, I do give credit to Ga Eun for jumping off the cliff to save Crown Prince, but I don’t think she’s the one who pulled both of them out from the sea. I remember that scene and it seems to be that Ga Eun also lost her conciousness while trying to untie Crown Prince. I get the feeling that it’s the mysterious court lady who saved both of them, idk.

  25. 75
    Mangali Says:

    I love you Ga eun
    You have really justified this role ❤️😍

  26. 76
    Henry Says:

    I am with you
    Yes Ga eun is the lady of character
    Just the love it the way she protayed the role very well

  27. 77
    Amu Says:

    I’m loving this drama 😍😍😍

  28. 78
    Leo Says:

    I just can say WOW

  29. 79
    Cinta Says:

    I’m from Indonesia
    And I’m just big fan of Kim so hyun
    You are such a beautiful girl

  30. 80
    Ok Says:

    This drama is just awesome
    The plot is just great

  31. 81
    Rainbow Says:

    I love both Lee sun 😍😍😍

  32. 82
    Amy Says:

    This drama is just like the moon that embrace the sun
    The pain the emotion is ditto
    Kim so hyun looks just like the lead actress there

  33. 83
    Mina Says:

    I just love all the Ost songs

  34. 84
    Bobby ho Says:

    Yipeeee tomorrow is Wednesday
    I can’t wait to watch the next esp

  35. 85
    Park yoo Says:

    Y no bromance between the two lee sun 😂😂😂

  36. 86
    No yam Says:

    Why is this drama getting hot n hot by each day lol 😂

  37. 87
    Haha Says:

    I pity you Dae Mok

  38. 88
    anjel Says:

    Aiyo it was the queen all the way when we were thinking it was the pyunsoo group who were trying to kill the prince
    That’s y I really like this drama a lot
    The climax damm

  39. 89
    Ahjuma Says:

    Shit man
    Why Ga eun role look so pitiful 😫

  40. 90
    Love_me Says:

    O god what gonna happen next when Ga eun know who is the real CP is..

  41. 91
    Miss aghasi Says:

    Can’t wait to destroy this pyunsoo group

  42. 92
    Boram lee Says:

    This drama is really getting my sleep ruin
    Why does it seem so hard to guess what is s going to happen next..it just beyond my imagination
    Can’t wait for the next episode
    My poor ga eun 😭😭

  43. 93
    Kyo Says:

    This drama is make me can’t wait for the next episode. Very wonderful.
    But why the acting of 2nd lead actress better than main lead actress, i thought.

  44. 94
    Jenna Says:

    To Kyo
    Omg seriously are you blind or you have no sense of talent..
    That second lead actress just have one expression on her face..how can you b comparing her to so hyun
    So hyun acting is far far beyond her reach
    No offence huh

  45. 95
    Sandy Says:

    Why this love is painful 😫😭

  46. 96
    Sandy Says:

    omg this drama
    I can feel lot of painful love

  47. 97
    Me Says:

    I love you both lee sun
    You both can have Ga eun lol

  48. 98
    Sarang Says:

    Now can’t wait for the next episode
    My poor lee sun and ga eun
    When are you guy going to bring that pyunsoo group down
    Can’t wait for them to be destroyed

  49. 99
    Miss thapa Says:

    I really hate the writer for showIng ga eun a weak character where supposed to be a such a strong lady 😫

  50. 100
    Hee hee Says:

    Ya I do agree with you miss
    So hyun is such a strong person
    I hate it when she begin shown a weak person
    Next esp she is getting slap shit
    I hate the writer too
    Plz change the story

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