
Don't get me wrong but I just don't get it why people always blaming Jaekyung? I mean whether Kim Dan meet Jaekyung or not his life already sucks tho

Real.
The hate seems to be 2 things:
A trend and introduction. When we meet Jae, he's this arrogant rich guy who punched his former "lover" in the face a threw money on the ground. Then proposed a contract between his PT for sex. Right there is when people see this as coercion, which is a no-no to many.
Since then, they saw most of their sexual encounter as rape when it's a contract that Dan did reject after the first night. He only came back due to his circumstances. Not many people have Dan's circumstances, so they see it as "weak" and "must protect at all cost!" While with Jae its "DEMON!" and "Horse!"
As for trend, I've heard that I lot of it comes from TikTok. Most of the readers on TT read on MangaGo, which leads to a flood of hate here, but minimal on other sites (like B@TO).
Jae is stubborn but smart. Danny is physically weak, but very strong as he carried himself for 30+ years (people also forget that Jaekyung wasn't even born when Dan was going through his issues).
So yeah ٩(๑❛ᴗ❛๑)۶

You're not using full logic. You're trying to justify hating him.
Correct, shit was happening. But the contract legit was anytime, anywhere, on call for the sake of Jinx. There wasn't to be romance, just a sex job. As for abuse, elaborate. I get a bit confused with his words and actions not really aligning mostly.

There's many options Jae could've done. Find a new guy, let Dan handle his own situations, Find Dan a new place if he's feeling generous, etc.
There's a reason he did what he did regardless of "what he said". At this point, I'm surprised people still take Jae's words at face value since his actions do not correspond with his words.

The question is why Jaekyung have to do such a thing for Dan? when they're not in a relationship actually they're don't even know each other (at first) Jaekyung need someone to have sex cause his jinx so he hired Dan, Dan need money so he accepted the deal that's it, Jaekyung said Dan can go if he wants but Dan stay because he need money, Jaekyung help him from the loan sharks even paid for Dan's debt imagine if Jaekyung wasn't there that day

There's a saying that men knows who they want to be with before the person they're with even knows. I've seen many Manwha/Manga/Manhua demonstrate this. Though Dan is a guy as well, he has too much on his mind to even think of romance.
Going back to I believe epsiode 55, when we get Jaekyung's POV, we learned that his interest in Dan started at their very first encounter. That's why he offered the contract. He assumed he felt was puppy love or a crush, but the more he learned about Dan and his life, the more he wanted to get involved despite the contract saying not to cross that threshold. Of course, his ego gets the better of him and he does questionable things, but he still grows.
I like the way you guys mentioned them by their hair color instead their name lmao