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IMDbPro

Yakhanyeongung

  • TV Series
  • 2022–
  • TV-MA
  • 40m
IMDb RATING
8.4/10
23K
YOUR RATING
POPULARITY
628
22
Park Ji-hoon in Yakhanyeongung (2022)
Yeon Shi-eun is a model student, who ranks at the top at his school. Physically, he appears like a weak boy, but, by using his smarts, tools, and psychology, he fights against violence that takes place inside and outside of his school.
Play trailer1:37
2 Videos
99+ Photos
KoreanKorean DramaTeen DramaActionDramaThriller

Yeon Shi-eun is a model student, who ranks at the top at his school. Physically, he appears like a weak boy, but, by using his smarts, tools, and psychology, he fights against violence that ... Read allYeon Shi-eun is a model student, who ranks at the top at his school. Physically, he appears like a weak boy, but, by using his smarts, tools, and psychology, he fights against violence that takes place inside and outside of his school.Yeon Shi-eun is a model student, who ranks at the top at his school. Physically, he appears like a weak boy, but, by using his smarts, tools, and psychology, he fights against violence that takes place inside and outside of his school.

  • Stars
    • Park Ji-hoon
    • Hong Kyung
    • Choi Hyun-wook
  • See production info at IMDbPro
  • IMDb RATING
    8.4/10
    23K
    YOUR RATING
    POPULARITY
    628
    22
    • Stars
      • Park Ji-hoon
      • Hong Kyung
      • Choi Hyun-wook
    • 152User reviews
    • 12Critic reviews
  • See production info at IMDbPro
    • Awards
      • 1 win & 2 nominations total

    Episodes16

    Browse episodes
    TopTop-rated

    Videos2

    Official Trailer - Season 2
    Trailer 1:37
    Official Trailer - Season 2
    Trailer Season 1 [OV]
    Trailer 1:08
    Trailer Season 1 [OV]
    Trailer Season 1 [OV]
    Trailer 1:08
    Trailer Season 1 [OV]

    Photos118

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    Top Cast35

    Edit
    Park Ji-hoon
    Park Ji-hoon
    • Yeon Shi-eun…
    • 2022–2025
    Hong Kyung
    Hong Kyung
    • Oh Beom-seok…
    • 2022–2025
    Choi Hyun-wook
    Choi Hyun-wook
    • Ahn Soo-ho…
    • 2022–2025
    Yuuki Luna
    Yuuki Luna
    • Various
    • 2022
    Lorna Duyn
    Lorna Duyn
    • Various
    • 2022
    Jeon Bae-soo
    Jeon Bae-soo
    • Park Jin-Cheol
    • 2025
    Yoo Su-bin
    Yoo Su-bin
    • Choi Hyo Man
    • 2025
    Andy Luu
    Andy Luu
    • Seo Jun Tae
    • 2025
    Kim Sung-jung
    • Choi Yoo-joon
    • 2025
    Choi Min-yeong
    Choi Min-yeong
    • Seo Jun Tae
    • 2025
    Bae Na-Ra
    • Na Baek Jin
    • 2025
    Lee Min-Jae
    • Ko Hyeon Tak
    • 2025
    Lee Jun-young
    Lee Jun-young
    • Geum Seong-je
    • 2025
    Ryeoun
    Ryeoun
    • Park Hoo-min
    • 2025
    Kim Su-gyeom
    • Jeon Young-bin
    • 2022
    Lee Yeon
    Lee Yeon
    • Young Yi
    • 2022
    Shin Seung-ho
    • Jeon Seok-dae
    • 2022
    Hwang Sung-bin
    • Tae-hoon
    • 2022
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews152

    8.422.7K
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    Featured reviews

    9fake_moviestar

    Unexpectedly Great

    I went into this show with admittedly low expectations. It didn't air on any of the big Korean channels, and wasn't made for any streaming service in particular. There were no big name actors in it, although I did recognize Park Ji Hoon from the fantastic At A Distance Summer is Green, where he played a summery playboy hiding a dark secret. This character could not have been more opposite, and boy was I blown away by his performance. I hope he is given bigger roles after this show, he certainly deserves the chance as his acting was great across the board.

    Si Yeun is a pretty, smallish young boy, so seeing him being a brilliant strategist combined with a wiry, stubborn strength was a pleasant surprise that kept me interested from the very first few minutes. While school bullying in Korean dramas is certainly not a new concept, this show is somewhat different from the others I have seen. It centers on human emotions in a way that puts every character in a grey moral zone that makes them all incredible interesting to watch and also all too relatable.

    It seems the ending was set up for a season two, and I really hope to see another set of episodes of this amazing show. I was completely hooked from start to finish!
    10hanalisss

    It's a dangerous thing to tease a sleeping tiger, even if he is in a cage

    I am absolutely in awe by this drama, we have seen this theme of bullying used often in kdramaland but I don't think I have ever been as satisfied with the main leads getting justice for what they suffer ( maybe The Uncanny Counter)

    The story is dark and painful and its a shame it's something that happens often in south korea but will move your heart countless times with the strong bond of loyalty and friendship between the leads and how they would continue to sacrifice themselves just to prevent harm from happening to their loved ones.

    The performances in this drama are just so powerful.

    The oscar goes without a doubt to Park Ji Hoon which completely transforms from candid roles like the one in Love revolution to this one. He plays a wounded beast, a beast that is caged in a weak body but who's soul is burning inside and that will never be extinguished. You just have to look at his eyes, the murderous gaze, filled with the wrath caused by the agonizing pain and the frustration of how much evil men can cause to others.

    What a display of raw emotions.

    But the other two leads are not left behind, the range of performances here are just outstanding.

    Just impatiently waiting now for season 2 and I hope we will also see again some of the characters from this season, otherwise I would miss them dearly.
    8Charlie-03

    He doesn't throw punches. He throws consequences.

    This isn't your typical high school drama.

    No crushes. No fluff. Just grit, trauma, and survival.

    Yeon Si-eun (Park Ji-hoon) is the kind of character who looks weak-skinny, pale, top student-but when cornered, he becomes terrifyingly strategic. He fights not with fists, but with intellect and intent. Every move is calculated. Every blow has purpose.

    He's not just fighting bullies-he's fighting a system that rewards cruelty and punishes silence.

    --- Why It Hits So Hard:

    Brutal realism: The fights are short, messy, and raw. You feel every hit.

    Cinematic quality: It looks and sounds like a film, not a web series.

    Three-dimensional characters: You're not watching good guys vs. Bad guys. You're watching flawed boys forced to grow up fast.

    Themes: Power, loyalty, betrayal, and the violence beneath the surface of society.

    --- What Stays With You

    The friendship between Si-eun, Su-ho, and Beom-seok?

    Heartbreaking.

    It starts as a glimmer of hope-and ends in pure devastation.

    The transformation of Beom-seok is a masterclass in how trauma mutates into something darker when ignored.

    --- Standout Performances:

    Park Ji-hoon (Si-eun): Cold, precise, yet quietly emotional. A revelation.

    Choi Hyun-wook (Su-ho): The loyal bruiser with a soft heart.

    Hong Kyung (Beom-seok): Possibly the most complex and tragic arc.

    --- This show isn't about glorifying violence.

    It's about what people become when no one protects them.

    And in that silence, how some people rise-while others fall.

    If you're tired of polished heroes and one-dimensional villains, Weak Hero Class 1 punches through the clichés and leaves a lasting bruise.

    It's not just a show. It's a gut check.
    10priyagoswami-94472

    This series has blown my mind. Hands down !! Must watch.! Dont even think twice.

    I went into this show for a normal korean highschool genre but what I got is way beyond I could have imagine. I directly watched it without synopsis and trailer and yes it has just blown my mind.

    Many K dramas have touched the subject of bullying but none were like this.

    This show has gone to the depth of the reality. This shows depicts what happen when one does not give in to the bullying. What happens when one actually fights back.

    This show puts forward two aspects of friendship. The one where you can give your life for your friend. And the one where you can also take life of your friend.

    MUST WATCH !!!!!!!!!

    POV - Binge it.
    10imdbfan-7596256975

    Season 2 of Weak Hero Class Left Me Speechless - Season 3 Is a Must

    I honestly don't have enough words to describe how much Season 2 of Weak Hero Class meant to me. It's rare to find a show that hits so hard emotionally while still delivering intense action and brilliant storytelling. Every episode had me completely hooked - I felt every punch, every tear, and every quiet moment. The characters grew in ways I didn't expect, and I found myself caring about them even more than before.

    This season wasn't just good - it was unforgettable. You can feel the passion and effort behind every scene. That's why I truly believe a Season 3 isn't just something fans want - it's something we need. There's still so much more to explore, and I hope the creators know just how powerful this series is.

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    Related interests

    Choi Min-sik in Old Boy (2003)
    Korean
    Son Ye-jin and Hyun Bin in Crash Landing on You (2019)
    Korean Drama
    Molly Ringwald in Breakfast Club (1985)
    Teen Drama
    Bruce Willis and Taniel in Piège de cristal (1988)
    Action
    Naomie Harris, Mahershala Ali, Janelle Monáe, André Holland, Herman Caheej McGloun, Edson Jean, Alex R. Hibbert, and Tanisha Cidel in Moonlight (2016)
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    Thriller

    Storyline

    Edit

    Did you know

    Edit
    • Trivia
      Based on Manhwa/Webtoon/Webcomic "Yakhanyoungwoong" written by Seo Pae-Seu & illustrated by Kim Jin-Seok (first published from May 5, 2018 via Naver).
    • Connections
      Referenced in Show!nterview with Sunmi: "Weak Hero Class 1" Park Jihoon and Choi Hyunwook's strong entertainment (2022)

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    FAQ11

    • How many seasons does Weak Hero Class 1 have?Powered by Alexa

    Details

    Edit
    • Release date
      • April 25, 2025 (France)
    • Country of origin
      • South Korea
    • Official sites
      • iQiyi
      • Official Site
    • Language
      • Korean
    • Also known as
      • Weak Hero
    • Production companies
      • Playlist Studio
      • Shotcake
    • See more company credits at IMDbPro

    Tech specs

    Edit
    • Runtime
      • 40m
    • Color
      • Color
    • Sound mix
      • Dolby Digital
      • Dolby Atmos
    • Aspect ratio
      • 2:1

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