Weak Hero Class 2 ending explained: Did Yeon Si Eun's Eunjang High defeat Union, what happens to Su Ho, and which key character dies in finale?

Weak Hero Class 2 ending explained: The Korean action thriller Weak Hero Class 2 premiered on Netflix on April 25, 2025, finally putting an end to the two-and-a-half-year wait for fans. Starring Park Ji Hoon, the first part of the series, released in November 2022, earned praise for its raw and realistic depiction of high school bullying in South Korea.

The series follows Park Ji Hoon's Yeon Si Eun, a model student at the prestigious Byeoksan Middle School, known for being at the top of the class. Although he is a boy of petite stature, his integrity can make anyone feel small. He steers clear of distractions. And in the name of friends, he only has his books and pens.

However, Si Eun's no-nonsense attitude gets on the nerves of the school bully, Jeon Yeong Bin (Kim So Gyeom), after he beats him in a math competition. Despite many attempts by Yeong Bin, Si Eun remains unfazed, protected by a nonchalant student, Ahn Su Ho (Choi Hyun Wook); however, his patience gets tested when Yeong Bin sets up a transfer student, Oh Beom Seok (Hong Kyung), to mess with him during exams. He loses his calm and attacks Yeong Bin using his sharp skills, landing him in the hospital.

This sets a chain of events, making Si Eun, Su Ho, and Beom Seok an apparent target of a dangerous gang recruited by Yeong Bin to take them down. However, the trio's friendship is short-lived as Beom Seok misunderstands Su Ho's carefree nature and ends up setting him up while also harming Si Eun in the process. The first part ends with Su Ho in a coma and Yeon Si Eun transferring schools, while Beom Seok leaves the country.

The second part kicks off with Si Eun trying to start fresh at Eunjang High, still weighed down by guilt over Su Ho, who remains in a coma. He manages to get through the first few months quietly, but then fails to overlook the mistreatment of his classmate Seo Jun Tae (Choi Young Min) at the hands of school bully Choi Hyo Man (Yoo Su Bin).

As Si Eun and Jun Tae get pulled into trouble once again, they find unexpected allies in Go Hyeon Tak (Lee Min Jae) and Park Hu Min, aka Baku (Ryeo Un), the tough but good-natured stars of Eunjang High's basketball team. Along the way, Si Eun comes to realise that Hyo Man is just a small piece in a much larger bullying network, named the Union, run by Na Baek Jin (Bae Na Ra), Baku's childhood best friend, and his right-hand man, Geum Seong Jae (Lee Jun Young). These bullies report to CEO Choi (played by Jo Jung Suk), and their business is not limited to bullying; they perform illegal activities such as money laundering, carry out high-profile thefts, and shelter criminals.

As the story unfolds, Si Eun and his friends face moral dilemmas, make dangerous choices, and ultimately decide to take down the Union to finish it once and for all.

Hyeon Tak, Si Eun, Baku, & Jun Tae (from left to right)| Credit: X

Weak Hero Class 2 Ending Explained: Did Si Eun and friends manage to take down the Union?

The eighth and final episode builds to a dramatic showdown between Eunjang High and the Union. The clash is triggered by a high-stakes bet between Baku and Na Baek Jin: if Eunjang wins, the Union must leave the students alone¡ªbut if Baek Jin wins, Eunjang High becomes part of the Union, advancing his plan to expand their money laundering operation.

The final showdown between Eunjang High and Union

Approximately 300 boys gather at an empty field on the outskirts of the city for the epic clash. But Si Eun, being the geek he is, does not believe that all battles are fought on the field. In the earlier episode, he conspired with the union member Geum Seong Jae to take down the entire system after Seong Jae had a fight with Baek Jin and distanced himself from the entire fiasco. He shares the details of their burner account with Si Eun, gaining his trust and posing as a threat to Baek Jin.

On D-Day, before heading for the fight, Si Eun meets Seong Jae, who lures him on the pretext of sharing more inside details but ultimately sets up a trap for him. When Jun Tae realises Si Eun has been missing, he runs back to the bowling alley to find him.

In the meantime, Baku and Baek Jin, once inseparable, go head-to-head while their past friendship flashes back in front of their eyes, bringing a sense of remorse and guilt to former friends. However, the show must go on. After putting up a strong fight, Baku's body seems to give up as he soon lies unconscious on the ground. Just when Baek Jin was about to declare the Union's victory, Si Eun attacks Baek Jin in his signature style, which has more to do with science than throwing fists. He holds the ground for a while but falls short in front of monstrous Baek Jin, who has nothing but a win on his mind. However, just when Si Eun gives in, Baku rises from the ground, a plan they had orchestrated in advance, and takes down Baek Jin, ensuring Eunjang High's victory over Union.

Yeon Si Eun ready to fight Na Baek Jin| Credit: X

Yeon Si Eun reunites with Ahn Su Ho

Si Eun gets emotional after Su Ho wakes up from coma| Credit: X

The Union has now been dismantled, while students at Eunjang High only have classes and the president's election to worry about. One year later, Si Eun gets the most awaited call of his life. He sprints to find Su Ho awake from the coma, his lifeless eyes suddenly filling with warmth as he sees his best friend. The credits then start rolling down after the heartwarming reunion, hinting at a happy ending.

Post-credits scene: Which key character dies in the end?

But the post-credits scene adds a final twist. Since the fight, Na Baek Jin has vanished, with most assuming he went into hiding after his defeat. That changes when CEO Choi shows up at the Union's hideout and offers Se Jeong a new role¡ªtaking over as his right-hand man in running the shady operation. When Se Jeong asks about Baek Jin, the scene cuts to a somber funeral, revealing that Baek Jin was seemingly killed by CEO Choi for failing to protect his interests. The series ends with Si Eun, Baku, Jun Tae, and Hyeon Tak attending Baek Jin¡¯s funeral.

Yeon Si Eun and his friends attending Na Baek Jin's funeral| Credit: X

Weak Hero Class 2 is now available to stream on Netflix.

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