The super villains that keep attacking Paris? Have you not heard about Ladybug and Chat Noir at all? [Well, there WERE other heroes in the world (according to word of god at least), but Paris was a popular city.]

That seems simple. [But he pauses. Because it sounds like magic and he knows you don't just mess with magic without thinking about it. He looks at her again, looking her over. Usually if there's a possession, there's some kind of sign.]

[She doesn't LOOK possessed...]