
Every time they have sex because of the power imbalance
Dan is literally in debt to the Horse and repeated thinks about how he doesn’t want to have sex but has to. Jk does something Dan doesn’t like every time they “have sex” which is not foully informed enthusiastic consent therefore every time they’ve had sex was rape. Including the time before Jk’s American match bc Dan was under the influence of drugs. But that was unintentional ig since Jk didn’t know. Along that same vein, Dan raped Jk when he was drunk the night before his birthday bc Dan was sober and Jk was fully out of it.
I digress
But the answer your original question
I can’t give you a chapter bc it’s every time they bone bc Dan isn’t actually giving consent

Can we really talk about rape when Dan is fully aware of what he's doing (he has to)?
You say it yourself : The chapter where Dan was under the influence of drugs, jjk didn't know so doesn't count. But on the other side, when jjk was drunk and out of it, Dan took advantage of the situation even tho jjk gave him the choice (bro jjk drunk, can we talk about that? He's was like back to his 6yo).

Okay, firstly I'll explain what rape is.Rape is when a person ignores their partner's "no" or "stop" during sex; then it's not sex anymore, it's "rape." Unless it's BDSM and both parties agreed upon consent—none—consent, which was not the case in this manhwa.Speaking of that contract, even though Dan signed and agreed upon everything, it doesn't make it "sex." Also, we should take into consideration that Dan was coerced into signing that contract. And JK took advantage of Dan's situation in order to help his jinx.And to say it is rape simply because if a person says "no," contract or not, it is rape. Because that person is crossing your boundaries.So yes, Dan is a poor idiot who signed up to be raped.

Yeah I said Dan also raped Jk that one time but literally every other time Jk rapes Dan
And no saying every other time it was rape is not over exaggerating
Just because they have a contract that don’t mean shit
Consent can be taken away at any time and the fact that Dan has said and done things during sex to try to get Jk to either stop entirely, stop what he’s doing, or slow down and Jk ignores it
It’s rape period
Now that doesn’t mean I hate this manhwa
I still like it especially bc of the art
And I wanna see jk somehow get turned into a green flag even though if this were real life that horse should be out down
Can anyone tell me what chap did jaekyung raped dan because I never really noticed it after rereading it 2 times, and then news flashing everyone misinformed saying jaekyung raped dan when in fact hes just a normal red flag man with bad attitude and temper?