in the raw chapters it shows a book shelf fall on top of Soo Woon by accident. Seok Jo (dark hair) has traumatic flashbacks to a scene where he is a kid and crying, he's sitting on the floor and elsewhere in the house is dad (who I think committed suicide) is also sitting, crying. His sister enters the scene and too starts to cry, then the image of the hammer appears.
Obviously when it's translated it will make more sense, but maybe Woon's hand was damaged just through the accident of the books falling on him, and the hammer image is actually related to Jo being the victim rather than the perpetrator....?
From what I understand she knows his arm is damaged, and as I said in later chapters it shows that a book shelf fell on him, therefore she thinks he has trauma relating to this.
We don't know if Seok Jo hurt him physically, maybe him not being able to go out with him when they were younger was the source of pain. Or maybe he was hurt because he saw his friend/first love suffer when his dad died. I think the hammer is related to something Seok Jo went through, rather than Soo Woon. Both were in the same room from what I remember when the book shelf fell, so maybe she blames Jo for the accident, or thinks his presence will stir up bad memories of the event for Woon.
Guess nothing will be confirmed yet...
@clouds Thanks for this. I like when there's a bit of raw spoiler so I'm not in the dark . I can eagerly await the next translated chapter.
I mean I get that but I need to know everything Before i can just so Ohhhh I get it. I mean he wasn't doing anything fishy though I mean to her it may seem fishy because she doesnt really like him but it wasnt anything fishy sometimes if that's the case you gotta watch from a distance cause it looks like he's still lying to her though
No problem, that's just my possible speculation on the raws I saw. There are a few sparse flash back scenes, so I would imagine most of the backstory and information is provided in the text, which obviously has yet to be translated.
You can view the raw chapters yourself on lezhin & toonkor
- https://www.lezhin.com/ko/comic/bluecheesetable
- https://toonkor.xyz/%EB%B8%94%EB%A3%A8%EC%B9%98%EC%A6%88%ED%85%8C%EC%9D%B4%EB%B8%94
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Well this could be considered a spoiler but I'll say what I got from the raws
Seok jo was angry and fighting with soo woon then he I don't remember how but a cupboard starts shaking and is about to fall on Seok jo and soo woon saves him by pushing him away and then he gets buried under the cupboard. At first Seok jo was shocked but then he takes a hammer and starts breaking the cupboard to save soo woon. And you know the rest.
Except you and Sara don't seem to understand that it wasn't that she was worried about him seeing Seokjo that was the problem. For one she was more worried about him telling her the truth about visiting a gay bar since she didn't even mention Seokjo. And you can be worried and NOT force your friends to tell you everything. It's really that simple. On the other hand I personally don't care if Seokjo had not used the hammer on Soowon's hand. The fact of the matter is Seokjo never went out of his way to be friendly with Hyewon. And she always found him to be suspicious even before that incident. Plus he always acts like a jerk around Soowon. Soowon has always had to put in more effort than Seokjo with regards to their relationship, whatever it happened to be at each particular moment.

I wouldn't say she's my favorite character. I feel like she should of waited for him to let him tell her when she was ready instead of just following her. I feel it's unfair to judge the guy who smashed his hand because we don't know the story of why he did or if he it on purpose or on accident. All we know is that he smashed his hand.