Every author have a different theories of alpha and omega. But mainly it's a world where guys can get pregnant.
Alpha >Beta>Omega
Alpha is most powerful, having influence on Beta and Omega. Just like ch.18. They
can't be pregnant (female has lowest chance)
Beta can be pregnant but I think you can just see Beta as ordinary hahaha.
Omega can get easily pregnant no matter male or female. Omega has heat and need Alpha's help to calm down.
There is "mark" in some story. After one Omega's neck is bited by one Alpha , the Omega can't have sex with other. But it's seem this one don't have "Mark".
I recommend "Remnant", my first ABO manga and first read the story about Therianthropy X Human, actually I couldn't accept ABO before,haha.
If something is wrong, please tell me.
@RONROM
No, I see some manga with alpha's male pregnant
Oh, interesting.haha. Thank you telling me.(๑•ㅂ•)و✧
I still dont understand the whole alpha and omega thing, lowkey confused the whole time.