p23: the one who was punished was the former High Priest (following the anime terminology of Chief Priest / High Priest, and not the LN of High Priest / High Bishop).
There's also the bit where Rozemyne's spewing poison... In the LN, Rozemyne blamed Ferdinand's education, while he claimed she was already like that.
Aside from the translation, the manga feels a bit different. In the LN, the swap was an impulse after Wilfried annoyed her. Here it feels more...
Yeah, but even just from a practical point of view, it should be pretty hard for a 13 years old boy to pass as 19.
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Isn't it Gaoshun's daughter who had a child?
She also needed the compliments. Compliments she knows are sincere because of how they're wrapped in shit that's embarrassing for everyone in the room, including her.