I was thinking the same thing
Isn't it if you bond with someone?..
But the bitemark itself serves as the evidence of the bond.
Although every manga (or publisher) has its own omegaverse rules, so I guess it's fine...
Every omegaverse story's rules are a little different, this one didn't even really lay any ground rules out at the beginning so I guess anything goes lol.
Yeah, thought about it much later lol. Man but it sure does make things a bit confusing ._.
I thought he could not have sex with others if he had a bite mark ._. Meh...