"Choi Hyun-wook as Ahn Su-ho winking while wearing his signature red t-shirt in Weak Hero Class 1, showing his characteristic playful and charming expression"

Su-ho and Si-eun’s Relationship: When Fans Ask the Hard Questions About Weak Hero’s Most Debated Bond

📢 Fair Use Notice

This post contains copyrighted material from “Weak Hero” (© Wavve/Netflix) used for educational analysis, criticism, and commentary purposesunder fair use doctrine. All rights belong to original creators.


🦋 One comment stopped me in my tracks this week:

😱 OMFG THANKS I’VE BEEN SMILING THROUGHOUT THE VIDEO. I know this is supposed to clear up misunderstandings but why do I feel even more butterflies from them now that I can see what he did in Korean context??? MY HEARTTTTTT”

This reaction perfectly captures why discussions about Su-ho and Si-eun’s relationship continue to spark passionate debates among Weak Hero fans. Every analysis seems to deepen the mystery rather than solve it, and honestly? That might be exactly what makes their bond so compelling 😉

"Su-ho and Si-eun walking to school together with Su-ho's protective arm around Si-eun's shoulder - a tender moment that perfectly captures their natural friendship and Su-ho's caring nature. Source: Weak Hero Class 1, Wavve/Netflix. All rights reserved to the original creators."
Source: Weak Hero Class 1, Wavve/Netflix. All rights reserved to the original creators.

The Question That Started Everything

When a subscriber asked about potential Season 3 development, they touched on something fundamental about Su-ho’s character that many viewers overlook:


“If we get a season 3 I would like to see some development from Su-ho. Why did he latch onto Si-eun in the beginning? Su-ho was a pretty cool guy, why did he have no friends?

“Did he sense a loneliness in Si-eun that he also felt? So much happened in that first season, I want to explore this friendship even more in s3”

💭 This question reveals the deeper psychology behind Su-ho’s choices—something that goes far beyond surface-level popularity.

"Su-ho and Si-eun walking to school together with Su-ho's protective arm around Si-eun's shoulder - a tender moment that perfectly captures their natural friendship and Su-ho's caring nature. Source: Weak Hero Class 1, Wavve/Netflix. All rights reserved to the original creators.
Source: Weak Hero Class 1, Wavve/Netflix. All rights reserved to the original creators.

Su-ho’s Hidden Isolation: My Response 🗣️


The Details Fans Are Catching 👀

“I totally forgot that Su-ho has been quietly watching Si-eun before their first actual interaction omg. I also def forgot about the 🫰 gesture. It’s def in line with Su-ho character though I can see why Hyun-wook feels it might feel out of place haha XD”

"Su-ho quietly observing Si-eun from his seat - showing his early interest in getting to know the reserved transfer student before they officially became friends. Source: Weak Hero Class 1, Wavve/Netflix"
Source: Weak Hero Class 1, Wavve/Netflix. All rights reserved to the original creators.

Yeah I can understand why Hyun-wook felt that heart gesture was awkward too!” 🫰


When Fans Defend Su-ho’s Choices

Not everyone was satisfied with Su-ho’s initial hesitation when Beom-seok asked for help.

One subscriber wrote:

“Su-ho seems to care for Si-eun right at the beginning, but his hesitation and ignorance when hearing Si-eun is being bullied by gangsters really disappoints me. Even if he has a reason for that.”

I explained:

But another subscriber provided an analysis that completely elevated the discussion:

“Yes and it’s also the character writing. Su-ho is at school because he has to be. So his heart isn’t there. He just sleeps and exercises. To the contrary, Baku is the heart of Eunjang and Eunjang is his heart.”🫀

That is where the fact that S1 was expanded upon a short flashback in the webtoon really shines, because S1 isn’t actually about weak heroes standing up to villains harming a collective – it’s about friends standing up for each other. But for that you have to get close first”

Source: Weak Hero Class 1, Wavve/Netflix. All rights reserved to the original creators.

I was genuinely moved:

The Economic Reality Behind Su-ho’s Priorities 🥖

Another one provided what might be the most insightful analysis I’ve seen about Su-ho’s character:

“The reason is because Su-ho is basically an adult in a teenager’s body, the breadwinner of the family. He even says it in the scene, ‘I can’t, I have work’ as the reason for why he won’t save Si-eun.”

“And when Beom-seok and Si-eun were planning on how to stop Gil-soo, Su-ho says, ‘Just call the cops.’ In his mind, all these matters are small things because the bigger priorities for him is earning money.” 💸

“He can’t be compared to Baku because Baku wasn’t juggling three jobs at once. Baku was friendly to everyone because school was his life, but Su-ho’s main priorities were his work & the people close to him. At the time, Si-eun wasn’t really his friend so it made sense why he wouldn’t put his life on the line for him.”

👍 This analysis perfectly captures why Su-ho’s initial hesitation makes complete sense from his perspective.

👇 Below are my organized thoughts on this discussion:

"Su-ho and Beom-seok's heated argument at the karaoke place - the moment their friendship reached its breaking point when hurtful words were exchanged. Source: Weak Hero Class 1, Wavve/Netflix"
Source: Weak Hero Class 1, Wavve/Netflix. All rights reserved to the original creators.

These boys… Choi Hyun-wook’s acting in that moment was insane. He portrayed so perfectly the face of a boy who was hurt and broken by those words…


"Su-ho's lonely expression - capturing the quiet sadness of a teenager carrying adult responsibilities while trying to maintain his friendships. Source: Weak Hero Class 1, Wavve/Netflix"
Source: Weak Hero Class 1, Wavve/Netflix. All rights reserved to the original creators.

The Romance Question: Drawing Important Distinctions

“I love watching your videos… However I don’t agree with what you said about their relationship… I mean when you said that ‘its nothing sexual’.

“See, romantic love doesn’t always equate to being sexual. Maybe they do love each other in a romantic way… Its different from sexual feelings ❤️❤️”


What These Discussions Reveal About Su-ho and Si-eun

✨ These fan conversations illuminate something crucial about Su-ho and Si-eun’s relationship: its power lies not in easy categorization, but in emotional authenticity. Whether viewed as deep friendship, first love, or something uniquely their own, their bond resonates because it captures the intensity and confusion of teenage emotional connections.

Su-ho’s loneliness, his adult responsibilities in a teenager’s body, and his fighter’s instinct for recognizing potential—all of these factors contributed to his choice of Si-eun as his first real friend. Si-eun’s quiet resistance, his refusal to mentally submit despite being physically outmatched, caught Su-ho’s attention in a way that cowering never could have ♥️

"Su-ho putting a helmet on Si-eun before their motorcycle ride - a protective gesture that perfectly captures his caring, 'hyung-like' nature toward his friends. Source: Weak Hero Class 1, Wavve/Netflix"
Source: Weak Hero Class 1, Wavve/Netflix. All rights reserved to the original creators.

The Beauty of Interpretation

What makes these discussions so engaging is that Weak Hero deliberately leaves room for multiple interpretations. The show focuses on emotional truth rather than labels, allowing viewers to connect with Su-ho and Si-eun’s relationship through their own understanding of deep human connection.

Whether you see romance, friendship, or something indefinable, the emotional intensity remains the same. And maybe that’s exactly what makes their bond so universally compelling—it transcends simple categorization to touch something fundamental about human connection.

The conversations continue in my comments section, each fan bringing their own perspective to understanding Su-ho and Si-eun’s complex, beautiful relationship. And honestly? I hope they never stop.

Want to join the discussion? Share your thoughts on Su-ho and Si-eun’s relationship in the comments below.


Want to hear these Su-ho scenes analyzed with original audio examples and cultural context? Check out my full analysis in the video: 🔗 The Wordplay That Made Si-eun Laugh | Subscriber request #weakheroclass1 where I break down these scenes with audio examples and cultural context!


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Author: jennielee

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