With that in mind, a human and a demon conceiving a child simply through multiple rounds of sex wasn't something that happened easily. It was possible, sure, but not common. However, the existence of half-human, half-demon offspring had long been a reality. In fact, there were quite a few of them in the world now—one of the members of the Sarushima group was proof of that.
So while the chances were slim, there was still a possibility that Yuuna could become pregnant in the future. That was why she had asked if she would make a good mother.