Shadow-kun
I'm confused... Didn't Emperor Kelt despise the MCs mother? Why would he care if the boy besmirches his mums 'good' memory?
The Emperor used to distain the MC's mother, but after seeing the way that she acted towards her husbands disappearance, he kinda fell for her personality and started having positive feelings about her, unlike the other wives/concubines of the Emperors son (Technically could be called the Crown Prince in this case) who were just vying for power.