Spoilers I think....
Wasn’t it like that sovieshu(idk his name) accidentally ate the coockies instead of navier?
They both ate the cookies, but sovieshu didn't suffer any side effects but queen will have stomach ache and he assumes that queen is infertile while he is the one who is infertile. ┑(￣Д ￣)┍
Ohhh thanks for the clarification^^
I have a question tho. Why is it only hi who is infertile when they both ate the coockies?
That even I don't know we both should ask author
SPOILER.
WHEN BOTH emperor and queen were children, emperor steals some cookies which is poisoned by late queen( emperor mother), and give it to queen, after having it she suffers stomach ache. So the emperor thinks queen is infertile but she is not.
Prove that queen is not infertile is "queen will give birth to two babies after getting remarried to western king ლ(´ڡ`ლ)