
two chapters in...the other MC with light brown hair seems creepy...hmm. I feel like it's badly representing gays as like stalkerish and stuff X P
Does this get any better?

yeah, whether it's Shoujo or Yaoi, you could say the same thing. I'm sorry I don't understand your statement/point regarding Shoujo?
I totally agree that Yaoi is often fetishizing but some stories are really good and have more plot than super super fetishizing. Also, I just get bad vibes from a story that portrays a gay character as stalking and drugging their straight counterpart.

hi everyone! So if an alpha bites an omega's neck, and they are therefore bonded, does that mean the omega can only have kids & sex with that alpha? And the alpha can only have kids & sex with that one omega?

It means that the omega has some NASTY side effects when they have sex with anyone else. That's what Daato and Baron were talking about in the beginning of chapter 4 and what Daato was describing while being raped (his organs "screaming out in pain" and throwing up). This isn't just in Hasumi-sensei's version of omegaverse. I've seen it in others.
What's unique about a soul bond is that it locks in the alpha too. Standard bond, they can still mate with other omegas. Soul bond means they can just mate with their bond. The bond breaks with death, if the shit-talking omega in this chapter is to be believed.
is there incest in here? was confused...
No, Yoosun and Hyewon aren't real siblings. They grew up together, but they aren't related.