regarding about the bite mark in shuu's mother so you mean she had a first partner before shuu's father ??
Yep! She was beaten by another alpha
was she raped or its she had a previous partner???
It wasn't stated thou
I was under the assumption that after you get bitten by one alpha you could not have a baby with another one? (What was Shuu's dad an alpha?) I saw that in another manga where the guy got bit and now when he wanted to do it with his lover he would feel ill and vomit. (But maybe its different in every story?)
Yes, it depends on the author
Ao, there are some extra pages which weren't translated. Seme's brother is in love with Shuu's boss (it's a MALE).
And Shuu's mother's neck was bited not by Shuu's father
Aaaand, more likely there'll be a spin off for seme's brother and new coworker of Shuu. (That dude is beta and is in love with seme's brother Kaede)