She introduced herself as a daughter from a wealthy family during the Queen Berry case.

Spoiler

Julie Guile was actually the one who makes the imitation of the Queen Berry which sank on the year 1914 and she's the one who is responsible for the invitations that was received by the guests at the imitated Queen Berry. Later in the story, it was revealed that Julie Guile was one of the children which board the Original Queen Berry ship and that it is her way of avenging the death of her fellow orphan ten years ago.