Ruler: Master of the Mask

(5D)

Drama: Ruler: Master of the Mask (literal title)
Revised romanization: Goonjoo-Gamyunui Jooin
Hangul: 군주-가면의 주인
Director: No Do-Cheol, Park Won-Gook
Writer: Park Hye-Jin, Jung Hae-Ri
Network: MBC
Episodes: 40
Release Date: May 10 - July 13, 2017
Runtime: Wednesdays & Thursdays 22:00 (35 minutes each / 2 episodes per day)
Language: Korean
Country: South Korea

Plot
In the 1700's, Crown Prince Lee Sun (Yoo Seung-Ho) fights against Pyunsoo hwe. Pyunsoo hwe is an organization that has accumulated power and wealth through privatizing water all over Joseon. Crown Prince Lee Sun becomes a hope for the people who suffers. Ga-Eun is the woman Crown Prince Lee Sun loves and she helps grow as a ruler.

Cast
Yoo Seung-Ho
Kim So-Hyun
L
Yoon So-Hee
Heo Jun-Ho
Park Chul-Min
Shin Hyun-Soo
Bae Yoo-Ram
Lee Chae-Young
Kim Byung-Chul