wait.
hold up.
For a moment there I thought he has two female grandparents from the same parent.
I forgot that it might be from different side of his parent.
waiiit.
He or she admit she supposed to be grandpa.
what's going on?
Return to read and see if I change something better, but I stoke with this that it becomes Shota, like your other fanfic, and without mentioning the XD errors.