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A model student makes friends for the first time. Their friendship grows while confronting school violence.


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.

  1. Han Jun-hee


  2. You Su-min


Series Cast

  1. Park Ji-hoon as Yeon Si-eun

    Park Ji-hoon

    Yeon Si-eun

    9 Episodes

  2. Choi Hyun-wook as Ahn Su-ho

    Choi Hyun-wook

    Ahn Su-ho

    8 Episodes

  3. Hong Kyung as Oh Bum-seok

    Hong Kyung

    Oh Bum-seok

    8 Episodes

  4. Lee Yeon as Young-yi

    Lee Yeon


    8 Episodes

  5. Shin Seung-ho as Jeon Seok-dae

    Shin Seung-ho

    Jeon Seok-dae

    8 Episodes

  6. Kim Su-gyeom as Jeon Young-bin

    Kim Su-gyeom

    Jeon Young-bin

    8 Episodes

  7. Yoon Jung-hoon as Lee Jeong-chan

    Yoon Jung-hoon

    Lee Jeong-chan

    8 Episodes

  8. Hwang Sung-bin as Han Tae-hoon

    Hwang Sung-bin

    Han Tae-hoon

    8 Episodes

  9. Na Chul as Kim Gil-soo

    Na Chul

    Kim Gil-soo

    8 Episodes

  10. View More

Full Cast & Crew

Last Season

Season 1

2022 • 8 Episodes

Season 1 of Weak Hero Class 1 premiered on November 18, 2022.

Episode 8

(1x8, November 18, 2022) Season Finale

View All Seasons

Weak Hero Class 1
Weak Hero Class 1


Original Name 약한영웅

Status Returning Series


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Type Scripted

Original Language Korean


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