
Try to look at Chapter 9 then, you'll see how he said "stop" and "it hurts," after which the hyung pulls his hair, tells him to stop talking, and treats him abusively, even punches him a bit later when they were having an argument, despite him being lame. Also I'm not arguing if Minhyuk is a rapist or not, because I have read a bit of spoilers from previous comments, though I do not want to know further. Furthermore, Minhyuk being a rapist doesn't mean that the Hyung is not one. That's a fallacy.

I agree Minhyuk being a rapist doesn't mean that Hyung is not. In chapter 9, i think it was still consensual it just that the hyung is too rough than usual that time because of his jealousy, thats why sooyoung said "stop" and "it hurts". Although I hate the hyung because of that as due to sooyoungs pained facial expression when sooyoung said "not yet" it means that he is expects to have sex he isn't ready yet because he has not loosen enough yet.
Hyung punching him is actually already after their sex and the trigger of that is sooyoung telling the hyung that he already have a work and that that is his employer. Fighting while having an argument and the hyung "raping" sooyoung are actually two separate topics. I agree that he is an asshole for hurting the Mc because of his jealousy but I don't think that he rapes the MC.

Jealousy doesn't excuse rough handling, nor does it excuse ignoring your partner's "no" and "it hurts" and placing your hands on your lover's face to shut up their rejection of your advances. Sooyoong just got used to his hyung's rapist behavior, so I don't agree at all that this is consexual sex. But I guess each to his/her own interpretation of what happened then.

I agree with you that jealousy isn't an excuse for rough handling but in the beginning Souyoung said "slowdown" instead of "stop", implying that it is in their intention to have sex. The hyung let his emotions get the best of him, instead of listening to the MC. He was driven by jealousy when he saw Souyoung gets off the boss care but again it doesn't permit his rough handling. But I don't think it is rape if they have the intentions to have sex in the first place. I am actually sad that they end up in that state due to poor communication they used to be so in love with each other. Does he hurt the MC? Definitely. Did he rape the MC? I don't think so.
Well it is easier to think that the hyung is a complete asshole to validate what happened to him but I don't think that he is actually a complete asshole since he genuinely cared for the MC, the MC get traumatized because the hyung hurts him (the only person so far that makes him feel that he mattered) he wouldn't be traumatized if they didn't love each other.

Mate, I think you should look closer at each panel. The bastard is possessive, aggressive, and the sex was nonconsesual. I rest my case, but I I wouldn't be a hypocrite and say I don't read or enjoy things like these. It's just that for me, I should be able to tell the line between rough sex and rape.
http://www.mangago.zone/read-manga/legs_which_cannot_walk/uu/iur_chapter-9/pg-1/

I have check the panels, well he became posessive and aggressive but I guess all the seme's are posessive and aggressive lol. But I just think its unfair to tag him as a rapist when he' not, yes he is manipulative but I don't think he's a rapist if he is I don't think the MC can have a casual talk with him afterwards. Well there is a thin line between rape and rough sex but MC's dialogue points me towards rough sex more. Saying "stop", "wait" and "it hurts" are usual in yaois that I have read so I don't think that is a conclusive grounds to say it was rape.

Even wives are raped, but since victims are usually not in any position to fight back, they have to accept their situation and talk casually with their abusers afterwards to show that they will not fight back. Yes it is usual in yaois because rape is common in yaois. People should stop gaslighting rape into "rough sex" just because it is common in yaoi. He's not manipulative because Soo Yoong would have had a choice in the matter.

I am not gaslighting rape, I am merely stating my observation based on the dialouges. Also as I mentioned before I don't think the MC will be able to casually talk with the hyung if that is the case, at least their should be a sign of fear from the MC but the MC only gets afraid of the hyung after he hit him not immediately after the sex.

Then do you classify this as rape?
http://www.mangago.zone/read-manga/anti_p_t/uu/ibx_chapter-16/pg-1/
As I said, it is common in yaoi to use say thoae words during the act, also the MC said to slow down rather than stop at first implying that there's consent.
Btw, your arguments are starting to sound more of a personal attack rather than discussing the topic on hand, if that is how it is going to move forward. Let's just agree to disagree.

He said, "Do what you want, but hurry," so there is consensus. Mate, I'm getting tired of trying to convince you that consensus is necessary so that it isn't rape. That's basically the whole point. So if you keep on closing your eyes, that's fine. I just hope you don't justify this in real life and know when to draw the line.
The rapist has been erased. I repeat, the rapist has been erased.