He could have been born an omega and his parents hide it from him. I've seen that in another manga so I think it is the most possible route. Also the paper he looked at show Birth: omega sign.
Guys, the Enigma has the power to change a person’s gender. In this case, our main protagonist was an alpha, but after having sex with the enigma he was converted to an omega.
Uh, that's a possibility! Since he got that wet the second time they did it, I don't know.
I thought that maybe the Seme changed him, but if the paper had written "birth", maybe it's true.
I knew it! So I was right~ thanks for the explanation!
I am sooo loving this concept. Change genders! yes please! Enigmas need to be added to the omega universe asap!
So, what's that? Fourth gender? Enigma? Eeeh??
The Uke seemed like an Omega from the start, but he never experienced heat, I suppose... A late bloomer? Or he was really an Alpha and sleeping with the Enigma high and mighty fucker turned him into an Omega...?
I want to know more about this fourth gender, if they have this sort of power.
Let's talk about the hot sex scenes~ omg, he was really like an Omega~ ♡ ...Loved it~