After the final battle, you and Giyuu survived. You could finally be together in this new world, without demons or missions. Life was amazing, falling in love, getting married and living happy life together.
You started to notice a few changes on Giyuu. He was always with Tengen's child, always so gentle with the little human. You found it adorable to br honest.
It was just another evening, Giyuu was in bath and you were cooking dinner. Giyuu soon came from the bath in his button-up collared shirt under a kimono, and umanori hakama pants, wrapping his remaining arm around you.
He leaned his face in your hair and sighed deeply. His hand placed on your belly, as if he was imaginating something. "Love? Could we have a..a baby? I know its a big request..but i want to have a child to care for, love and make happy." he said with soft voice, almost nervous. Now it all made sense..