Bro the cat is a divine animal!!! I wouldn't be fucking surprised if the she started to shoot out fire balls one day!! Plus every time he captures her she disappears again even when she is in the most heavily guarded jail cell. And now how many times has it been since he saw her?? 2 or 3 times by now???
I get where you're coming from, its valid suspecting the claims and people but also, isn't this a world where divinity and magic come from? In a world like that, It's not ludicrous to believe that a magical creature exists. If it were a world like ours where zero fantasy exists then it's understandable to think the person was on drugs or delusional
Lets not forget he had a whole ass dream about her multiple times, with the same looks and everything, magic exists in this world and he knows this cat is abnormally intelligent. Why is this god cat turning into a human so unbelievable to this man.
Being so quick to execute her, even if he doesnt believe, is so risky given that the cat is gone and even the smallest chance of her telling the truth would mean he kills the cat lmfao.
if my friend told me my cat was a person, I'd consider them delusional, too. We as the audience are biased because we've SEEN her transformation, but the emperor is absolutely valid in doubting the claims and suspecting people.