Weak Hero Class 1 | ORIGINAL × Edition |

The series centers on (played by Park Ji-hoon), a top-ranked academic student at the prestigious Byuksan High School. While intellectually superior, Si-eun is physically frail, making him a prime target for school bullies.

Su-ho is the quintessential "fighter with a golden heart." He is a semi-delinquent who has been suspended multiple times, but he lives by a strict moral code: never hit someone weaker than you. Su-ho acts as Si-eun’s shield. Choi Hyun-wook brings a chaotic energy to the role, balancing the show’s darkness with moments of fiery loyalty and surprising warmth. His friendship with Si-eun is the emotional anchor of . Weak Hero Class 1

Weak Hero Class 1 is a gritty South Korean action drama that redefined the school violence genre when it debuted in late 2022. Based on the popular webtoon Weak Hero, the series serves as a prequel, detailing the origin story of its protagonist, Yeon Si-eun. Unlike typical high school dramas that rely on romance or lighthearted tropes, this show offers a visceral, psychological, and often heartbreaking look at bullying and the consequences of systemic failure. The series centers on (played by Park Ji-hoon),

Ho-jin kidnaps Yoon Seo-ah to draw Joon-woo out. Joon-woo and Min-hyuk storm the Union’s hideout. In the chaos, Joon-woo triggers an asthma attack intentionally to cause a distraction (setting off a fire alarm using an overheated laptop). Min-hyuk defeats Ho-jin in a brutal fight but is expelled for it. Ho-jin is arrested thanks to Joon-woo’s evidence file, but the Union’s higher-ups (including a young, cold-eyed Donald Na) take notice of Byuksan. They decide not to retaliate—yet. Joon-woo transfers to Eunjang High to protect his family. Min-hyuk disappears from school life. Su-ho acts as Si-eun’s shield

The fight choreography eschews stylized, clean martial arts in favor of messy, desperate scrambles. The camera stays close, capturing the sweat, blood, and sheer panic of every encounter. Every punch feels heavy, and every injury carries tangible consequences.

Beneath the thrilling combat and interpersonal drama, Weak Hero Class 1 levels a scathing indictment against adult institutions. The adults in this universe are categorized by three distinct failures:

While the action hooks the audience, the tragic emotional core of Weak Hero Class 1 lies in the volatile friendship formed between three societal outcasts. Each character represents a different facet of youth marginalized by the system.