
I read the raws and know just enough Korean to understand the word mark, but depending on the context it could be translated to bite? So don't take my word for it officially. Spoilers ahead.......
It seems that Hayoung is not aware of this though because Jaeho runs into Hayoung and Matthew the next day. Jaeho then asks Hayoung about the mark on the back his nape to which Hayoung is like what mark?? Anyways things about to get a bit rocky before they get better (don't worry nothing to horrible happens).

So this is just my theory, but I think Taehwan was starting to develope feelings for Yeonwu back in highschool but then was also in denial like nah I'm not gay. So like internalized homophobia (is that the correct term?). Anyways that could be why he is so weird when it comes to gay people. Because he is so in denial about possibly being gay, he is having an inner struggle and is jealous of what Dojin and Taehee have. Like maybe it reminds him of him and Yeonwu and that's why he gets mad because it's like "no I'm not gay."

This is all spoilers ahead so read at your own will.....
I didn't like how they talked about Omegas being inferior and alpha's being superior. Not to mention the rape stuff. But like once I got past that it was like oh wow I'm glad I stuck to it. I really liked how Kaoru wasn't your typical alpha who treated omegas like lesser beings. Like aside from the beginning when he forced himself on Yuka (like I know he had his reasons but I don't want to totally ignore that it was technically non con or borderline non con) he actually cared about Yuka and would always make sure yuka was ok with what was happening. He treated yuka like yuka and not based on his gender. Then we have Taiga, oh boy the character development there. I hated Taiga in the beginning and was like ha I don't care if you feel lonely or sad you deserve it. Same with Rin, I was a bit annoyed with Rin at first because it was like dude he is taken stop trying to get with him. But then as the story went on and their characters changed, man their story was beautiful yet sad. Like I went from hating Taiga to being like I wanna hug him. The moral of the story was also something you don't see in a lot of ABO's. Even though you may be born with a certain fate, that doesn't mean you have to follow that fate. You don't need to follow the fate you were born with to be happy.

It got a little confusing at times and I wish we got more Rum and Ginger time, but Mon and Mananan were also cute and I enjoyed their story. I was a little sad that Mono and Lego didn't end up together, but I didn't necessarily hate mono and barron. This was released in 2016 so we probably won't get those side stories which is sad because I wanted to see Lego's special someone, my boy deserves love. ╥﹏╥
But I'm still simping over taker (▰˘◡˘▰)