
I'm gonna be honest, I really hate the trigger warnings in some chapters. Just put one at the very beginning, otherwise we're veering into spoiler territory. And even then, I don't think it's necessary to list off every single one. Also, I noticed that if it's a messed up series but its core demographic is men, there are no warnings or there's only one warning in the beginning. I also kind of doubt the original Korean version has them.

So, I assumed they're doing heroin, but wtf is going on here? Arts and crafts? XD https://imgur.com/a/VMap6Xb
If I had to guess , maybe it's a drug that's heroin like, but it’s an in universe version. Kind of like how his parent's sickness seems to be an in universe thing. I wish the author would spend a little bit more time worldbuilding so I could know what these things are.

And that would only make sense if it was cocaine, which it definitely isn't. Powder heroin needs to be mixed with water and measured carefully, which is why it's always poured directly into the needle cap. It doesn't make sense to pour all of it out onto a surface if you're doing it intravenously. And they're the ones doing it, so it doesn't make sense for them to cut it with anything. So, until it's stated otherwise (and maybe it is, I'm not that far into it) I'm going to assume it's a heroin like drug that's specific to this world.

I didn't read the novel (didn't even know there was one), so I'm just going by what's presented in the manhwa. It's definitely not meth. Meth is an upper. Based on the dopey looks on their faces, the lying on the floor, the drooling, and some of the imagery, they definitely took an opiate-like downer.

Unfortunately Korea's general understanding of drugs is pretty poor. Again, when they fuck for days in one episode... that's an upper. The dazed look and hallucinations, sure, that's more like an opiate downer. Unfortunately what it "actually" is is probably just some Korean writer's idea of a drug that doesn't even actually exist. That being said, meth is the drug other than weed that koreans are probably more familiar with.

The one where they were fucking for days was a different drug than the one he took when his mom died. The one he took the first time was an opiate like drug. The second time... I'm going with an in universe version of mdma.
"what it "actually" is is probably just some Korean writer's idea of a drug that doesn't even actually exist." - exactly, so it's an in universe thing.

Holy fuck, that was hard to read. Why'd that asshole dump the kid's parents in that shitty back alley "hospital"? He has money. He could've at least taken him to a normal hospital. I'm curious what his parents are sick with anyway. What the hell kind of disease makes you conk out all day and night like that? It must be something that's specific to this story, cause I can't think of anything in real life that does that.

Is it fucked up that I like this so far? For something that's written by a guy, it's not terrible. Yeah, I wish the writing was a little better (some of the lines are ridiculously cringey), but overall it's decent, and the guy is okay to look at. I don't love the body proportions of the women, but they're still pretty. And while the sex scenes have some ridiculous moments, some of them are hot.
Okay, I have no idea what kind of drugs they're on now lol. Maybe PCP. Or an in-universe version of MDMA. Also, it's nice to know the seme isn't just going to abandon Sungkyun. As much as I don't really like Cheong-rim, I hope they both get a happy ending.