How to unlock Edit
- Main article: Costumes
All you need to unlock this trophy is simply acquire the Maid costume. You do so by starting the first episode, "The Diary of a Maid", going up to Melda's mansion, and talking to her. After a brief conversation, Kat will receive her maid uniform, at which point the trophy will unlock.
Since you need to play the mission to obtain the costume, the trophy is practically impossible to miss.