Responses
He's a royalty, the maids used to bathe him, but because ancia fired all maid, and she still alert with the remaining maid, ancia decided to bathe him herself, she literally doing the maid work like cooking for him and bathing him (novel explain it better)... Yes it's embarrassing for blake, but ancia has adult mentality so it's normal for her bathing a 8 years old crown prince

I dislike the bathing part. Even if he wasn't cursed, no boy his age would want to be washed by his crush in the bath.
It would be embarrassing. At least in "Sincerely: I Became a Duke's Maid" the girl was literally just doing her job as a maid. And he didn't have a romantic attachment to the FL when it happened. Here it just ruins the vibe for me.