Ruler: Master of the Mask

The BEST episodes of Ruler: Master of the Mask

Every episode ever - ranked by fan votes!

What does a masked crown prince do when a secret organization tortures the people and rules the country from behind the scenes? He defies the odds and becomes the hero the people need.

Last Updated: 4/20/2022Network: MBC
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Water for a Life (2)
star
8.67
9 votes

#1 - Water for a Life (2)

Season 1 - Episode 4 - Aired 5/11/2017

The Crown Prince finds he cannot stand by and watch a villager lose his hand for stealing some water to save his family, but there are unexpected consequences.

Are You the Leader of Pyunsoo Group? (2)
star
8.67
9 votes

#2 - Are You the Leader of Pyunsoo Group? (2)

Season 1 - Episode 8 - Aired 5/18/2017

Eun Ha finds proof that her father was innocent. The Crown Prince teaches Lee Seon how to impersonate him.

Learning the New Way (2)
star
8.67
9 votes

#3 - Learning the New Way (2)

Season 1 - Episode 10 - Aired 5/24/2017

After five years, Chilpye is a thriving marketplace and the Queen Regent has not yet stepped down.

The Clueless One (1)
star
8.67
9 votes

#4 - The Clueless One (1)

Season 1 - Episode 11 - Aired 5/25/2017

The Crown Prince rescues Ga Eun but keeps his identity a secret. The palace is surprised when Lee Seon makes a ruling that does not side with the Pyeonsoo-hwe.

The Initiation (2)
star
8.63
8 votes

#5 - The Initiation (2)

Season 1 - Episode 30 - Aired 6/28/2017

Following the Crown Prince’s initiation into the Pyeonsoo-hwe, there is a power shift in the palace.

Watch Now:Amazon
I Am Not Asking for Your Heart (2)
star
8.60
10 votes

#6 - I Am Not Asking for Your Heart (2)

Season 1 - Episode 14 - Aired 5/31/2017

The Crown Prince goes to the meet point to catch the copper thieves in the act.

I Will Find a Way (1)
star
8.57
7 votes

#7 - I Will Find a Way (1)

Season 1 - Episode 7 - Aired 5/18/2017

The Crown Prince asks Woo Bo how to eradicate the Pyeonsoo-hwe. King Yeongjo looks for another Lee Seon.

It Is a Heart-aching Love (2)
star
8.56
9 votes

#8 - It Is a Heart-aching Love (2)

Season 1 - Episode 12 - Aired 5/25/2017

The Crown Prince persuades the largest merchants to rise up against Dae Mok, and then goes off in search of copper.

I Wish I Was the Real King (1)
star
8.44
9 votes

#9 - I Wish I Was the Real King (1)

Season 1 - Episode 15 - Aired 6/1/2017

The Crown Prince uses the stolen copper to further his plan. Lee Seon finds a way to invite Ga Eun back to the palace.

Ga Eun Is in Danger (1)
star
8.30
10 votes

#10 - Ga Eun Is in Danger (1)

Season 1 - Episode 13 - Aired 5/31/2017

Ga Eun is desperate to find the pot that will clear her father's name. Lee Seon is heartbroken to have to pretend he does not know Ga Eun.

Water Exploitation (1)
star
8.25
8 votes

#11 - Water Exploitation (1)

Season 1 - Episode 5 - Aired 5/17/2017

Hwa Goon vows to win the Crown Prince's heart. The Crown Prince finds out why he must wear the mask.

With the Mask, You Are the King of Joseon (1)
star
8.22
9 votes

#12 - With the Mask, You Are the King of Joseon (1)

Season 1 - Episode 9 - Aired 5/24/2017

Hwa Goon helps the Crown Prince and Dae Mok tells Lee Seon that he must now wear the mask.

The Suggestion (2)
star
8.22
9 votes

#13 - The Suggestion (2)

Season 1 - Episode 16 - Aired 6/1/2017

Dowager Queen has her own plans for Ga Eun. The Crown Prince overhears Ga Eun pining for Chun Soo.

The Antidote (1)
star
8.22
9 votes

#14 - The Antidote (1)

Season 1 - Episode 39 - Aired 7/13/2017

Dae Mok tries to incite a riot in the palace. The King is surprised when Woo Jae offers assistance.

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Who Would Protect the Helpless? (2)
star
8.13
8 votes

#15 - Who Would Protect the Helpless? (2)

Season 1 - Episode 6 - Aired 5/17/2017

The Crown Prince tries to save Ga Eun's father, but that proves to be more difficult than he expected.

My Heart Will Never Change (2)
star
8.13
8 votes

#16 - My Heart Will Never Change (2)

Season 1 - Episode 40 - Aired 7/13/2017

In the series finale, Ga Eun makes a decision that she thinks is for the best. Lee Seon makes a terrible realization.

I Am Not His Puppet (1)
star
8.11
9 votes

#17 - I Am Not His Puppet (1)

Season 1 - Episode 31 - Aired 6/29/2017

Ga Eun and Lee Seon’s family worry about his safety as he pursues what he wants.

War Not Peace (2)
star
8.00
8 votes

#18 - War Not Peace (2)

Season 1 - Episode 22 - Aired 6/14/2017

The Crown Prince asks Hwa Goon to help him stop Choi Heon's army. The palace prepares for the Dowager Queen's birthday celebration.

Help Ga Eun Leave the Palace (2)
star
8.00
9 votes

#19 - Help Ga Eun Leave the Palace (2)

Season 1 - Episode 26 - Aired 6/21/2017

Falsely imprisoned, Ga Eun is visited by both the Crown Prince and Lee Seon.

Shocking Truth (1)
star
8.00
8 votes

#20 - Shocking Truth (1)

Season 1 - Episode 29 - Aired 6/28/2017

The Crown Prince is determined to save Ga Eun, but Dae Mok is one step ahead of him.

The Real Crown Prince (1)
star
7.90
10 votes

#21 - The Real Crown Prince (1)

Season 1 - Episode 37 - Aired 7/12/2017

Who is the real King? The Dowager Queen must decide which side she is on.

Do I Need to Hide Under a Mask? (1)
star
7.89
9 votes

#22 - Do I Need to Hide Under a Mask? (1)

Season 1 - Episode 3 - Aired 5/11/2017

The Crown Prince meets some colorful characters while looking for Woo Bo, who is not what he expected.

I Will Take It From Him (2)
star
7.89
9 votes

#23 - I Will Take It From Him (2)

Season 1 - Episode 32 - Aired 6/29/2017

Hwa Goon takes her revenge on Dae Mok.

Your Life Is at Stake (2)
star
7.88
8 votes

#24 - Your Life Is at Stake (2)

Season 1 - Episode 20 - Aired 6/8/2017

Dowager Queen enlists Ga Eun to help her figure out what hold the Pyeonsoo-hwe have over the King. Word that the King is a fake has begun to spread.

The Queen Selection (2)
star
7.88
8 votes

#25 - The Queen Selection (2)

Season 1 - Episode 24 - Aired 6/15/2017

When the Crown Prince sneaks into Dae Mok's house, he learns more than he bargained for. The Dowager Queen starts the Queen selection process.

Watch Now:Amazon