>>105299416In this case the magic will always work in the possessor's favour, Chloe's situation had nothing to do with magic at all but in a situation involving Marinette it's going to prevent people from thinking "Oh, that's her if you add a mask!" unless she actually adds a mask or transforms/de-transforms in front of them. The populace can still recognize she's got black hair and blue eyes, but the magic will prevent them from thinking about Marinette in that context or if they do they'll just go "Hm, nah, she's too clumsy" or something.
I mean none of this is show-confirmed but they're the standard in fiction.
>>105299455Which is funny because if it wasn't for Ladybug's professionalism that's the situation most likely to involve a kiss.