First, the condition for a child to be born. They need to have sex while wu is in his divine beast form.
Second, wu is special. He's a feline. His dick has spikes. I don't even want to imagine how painful it'd be if he wasn't altering it. It's like someone is trying to shove a club with thorns all over it in your ass.
Third, kagetora is against it. He would never give birth to a child. Meiran's appearance just proved it. The only child they'll have is meiran.
Unless nagi and kotone have another child, there will only be 2 children in this manga.
I can't really imagine anyone else having a child either. Haru would need to fuck a giant turtle and..how does sex between a literal bird and human work? Iirc, kureha tops during his heat, the other times he bottoms. So in that sense, he'd need to top during child making sex too. Nevermind. Forget it.
Let's just be happy there are at least 2 kids now.
The ch is really good but author plz I want ch from tora and wu I wanna see them having their own child