It was a difficult birth.
The baby's shoulder got caught.
It must be a the so-called shoulder dystocia. [5]
I do not know the cause, but it could be because of Roxy's small body.
She was in the normal birthing age of Migurudo tribe, but because the child is a half-blood child who has a big body, it was like she was giving birth at an early age given the size ratio.
It was more than likely because I'm the father and human.
Roxy ... was in a dangerous state for both mother and child.