At South Korea’s most prestigious high school, a scandal is brewing — but its privileged students will do anything to silence the truth. When a scholarship student enters the fold, he’s determined to crack the school’s impenetrable façade and reveal everyone’s secrets. 

From director Bae Hyeong-jin (Alchemy of Souls: Light and Shadow) and writer Chu Hye-mi (About Time), the mystery romance stars Roh Jeong-eui, Lee Chae-min, and Kim Jae-won. 

When will Hierarchy be released?

Stream it now.

Where can I find the trailer for Hierarchy?

Check it out at the top of this page. 

How many episodes of Hierarchy are there?

The limited series spans seven episodes. 

Lee Chae-min, Kim Jae-won, Chi Hae-won, and Roh Jeong-eui in Hierarchy 

Who’s in the cast of Hierarchy?

• Lee Chae-min (Crash Course in Romance) as Kang Ha, a transfer student at Jooshin High School
• Roh Jeong-eui (Badland Hunters) as Jeong Jae-i, a popular girl and heir to a chaebol (aka business conglomerate)
• Kim Jae-won (Our Blues) as Kim Ri-an, the most popular guy in school and the heir to the chaebol Jooshin Group
• Chi Hae-won (It’s Okay to Not Be Okay) as Yoon He-ra, a student in Jae-i and Ri-an’s crew whose family runs International Yoon, a major trading company
• Lee Won-jeong (My Perfect Stranger) as Woo-jin, a student from a family of politicians 

What happens in Hierarchy?

Kang Ha (Lee Chae-min), a mild-mannered scholarship student, transfers to Jooshin High School with a heavy heart and a singular mission: to unearth the school’s biggest-ever scandal … and get his revenge. But navigating this world of privilege isn’t easy — these students are practically royalty and firmly believe they can do no wrong. To them, Kang Ha is a nobody, just like the scholarship kids who came before him — like In-han, who died after being struck by a car at the beginning of the series. But what really happened to him? And why is Kang Ha so invested in avenging his death? 

When he catches the eye of Jae-i (Roh), the so-called queen of the school, Kang Ha’s life at Jooshin gets even more complicated. Jae-i’s part of the school’s ruling clique, alongside He-ra (Chi), Woo-jin (Lee Won-jeong), and her on-and-off boyfriend Ri-an (Kim Jae-won), who run Jooshin like they own it — which is true for Ri-an: His parents literally own the school. As love triangles and jealous rage abound, with everyone seemingly a murder suspect, will Kang Ha find out what happened in In-han once and for all? And maybe even find true love in the process? 

Lee Chae-min in Hierarchy

Is Hierarchy based on a book?

No, it’s not based on a book. 

Is Hierarchy based on a true story?

No, it’s fictional. 

Where does Hierarchy take place?

The series takes place at the fictional Jooshin High School in Seoul.

Where was Hierarchy filmed?

The series was filmed in Seoul, Goyang-si, Incheon, Jecheon-si, Namhae-gun, Paju-si, Seocheon-gun, Yangpyeong-gun, Yangyang-gun, and Yeongam-gun in South Korea. 

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