Responses

Yes thank you I remember reading this a couple years back and liking it as a hot headed teenager but came back for a reread and it was just awful.
It felt like there was no beginning and no ending just people being with each other because they can?
You absolutely read my mind I'm happy I'm not the only one who thinks like that
Recently, I've seen a video essay about how Korean dramas tend to romanticize obsessive and abusive behavior – this webtoon is a prime example of it.
We have Kangwoo (seme) who simply likes Doyoon (uke), without any context given until the side chapters. He leaves coffee on his desk everyday, hoping that Doyoon will magically understand his infatuation and reciprocate. Doyoon doesn't, he just wants a sexual partner to satisfy his need for essence, and even after saying that he's not interested in a romantic relationship, Kangwoo pretty much obligates him (by "jokingly" saying that he'll lose his job if he doesn't accept dating him). Again, Doyoon needs to have sexual intercourse, but noticing that that's the only thing he's after, Kangwoo denies him that. And then, when Kangwoo himself wants it, Doyoon has to accept everything he does.
The side chapters are just as bad – when I thought a little more context would be given, the author went and made it even worse. Basically, he was sexually attracted to Doyoon, and because of that, Kangwoo made him do the most nonsensical shit at work. Yes, he harassed him once again.
What pisses me off the most is just how the author made Doyoon feel okay with everything, like it was something romantic. Through the majority of this webtoon, Doyoon was r*ped, and through r*pe treated like a normal thing, he started to like Kangwoo. I'm sorry, but that simply does not make sense.
Also, the "dept" of Kangwoo's feelings that the author tried to show was just so out of place. They barely knew each other, Kangwoo barely had the time to go from sexually attracted to in love with Doyoon, and yet, in the end, he's suddenly "willing to die" for Doyoon? Again, it makes no sense.
There were just so many ways to make this plot work and add more depth to the story – the discovery of vampires and the public's aversion could be better explored, just like how Doyoon felt about that; Kangwoo's character could improve by realizing just how much of an asshole he was; Doyoon's relationship with Jooyoung could be more explored, as well). Honestly, it felt like the plot was simply an excuse for the author to keep pushing non-consensual smut down our throats.
Anyway, very bad. 3/10 at most (just because of the art, it was nice). Don't waste your time.