Weak Hero Class 2 starts exactly where Season 1 ended. Si-eun, the quiet but super smart student, gets expelled from his old school after all the fights he was involved in. He joins a new school called Eujang High. When he arrives, he tries his best to stay quiet and avoid getting involved in any trouble.
The other students are scared of him because they have heard about his brutal fights from the past. For a little while, it looks like Si-eun might finally have a peaceful life.
But of course, trouble finds him anyway. One day, Si-eun sees a kid named Jun-tae getting bullied. Even though he promised himself he would not fight anymore, Si-eun cannot just stand there. He helps Jun-tae and teaches the bully a lesson. That small action starts a whole new chain of problems for Si-eun.
You May Like: You Season 5 Ending Explained and Why Joe Goldberg Finally Got Caught
Soon, Si-eun is dragged back into fights and school gang wars. He makes some new friends, like Hu-min and others from Eujang High, but he also makes new enemies.
At the same time, Si-eun is feeling a lot of guilt. His old friend Su-ho, who was badly hurt because of fights in Season 1, is still lying unconscious in the hospital. Si-eun feels like everything bad that happened was his fault, and he blames himself every day.
As the season goes on, we learn about a group called the Union. It is a gang made up of tough kids from different schools. Their leader is Baek-jin. The Union is not just about bullying students. They are involved in stealing bikes, running illegal businesses, and laundering dirty money through a bowling alley. It sounds silly, but it is actually very serious.

Eventually, the Union tries to force Eujang High to join them. Hu-min and Si-eun decide to fight back. In the final, Hu-min goes up against Baek-jin first. Even though Hu-min is strong and skilled, Baek-jin manages to beat him. Things look really bad. But then Si-eun steps in. He knows he cannot beat Baek-jin with strength, so he uses his brain. He targets Baek-jin’s arms and legs to weaken him little by little.
A flashback shows that Si-eun had actually made a plan in case Hu-min lost. His job was to buy time until Hu-min could recover. The plan works. Hu-min gets back up, and together, they defeat Baek-jin. It is one of those moments that makes you want to cheer for them.
Right after the big win, Si-eun gets the best news of all. Su-ho has finally woken up from his coma. Si-eun rushes to the hospital, and when he sees Su-ho awake, he finally lets out all the emotions he was holding in. He cries and hugs his friend, feeling a huge weight lift off his shoulders.
But the story does not end there. After the credits, there is a sad and shocking scene. We find out that Baek-jin is dead. Si-eun and his friends attend Baek-jin’s funeral. Hu-min cries because, deep down, he still cared about Baek-jin. It is very clear that the gangster boss, Choi, probably had Baek-jin killed because he failed. In that world, if you lose, you pay the ultimate price.
You May Like: What Happens at the End of The Accountant 2
Earlier in the season, Si-eun had tried to bring down the Union without fighting by gathering proof of their crimes. He even asked Seong-je, a strong fighter from another school, for help. Seong-je pretended to be on Si-eun’s side but later betrayed him. So Si-eun had no choice but to go back to fighting.
There is also a dream sequence where Si-eun talks to Beom-seok, another old friend. In the dream, Si-eun apologizes to Beom-seok for not being there for him. This shows that Si-eun is slowly forgiving himself and moving forward from the mistakes of the past.
At the end, the show sets things up for Weak Hero Class 3. Su-ho will probably join Eujang High, and even though he will need time to heal, he will become part of the team. But the problems are not over. Choi is looking for someone new to replace Baek-jin. Even though Seong-je said no, it is clear that Choi is not the type to give up easily.
So the next season will likely have even bigger fights, more drama, and even tougher challenges for Si-eun and his friends. It is going to be wild, and fans are already excited to see what happens next.
Follow Mahamana News For More Updates…