This is a list of the characters. If you ever forget I have a list. The same rpers with different characters will share a locker.
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Locker numbers

4A: Aqua
6H: Diamond
13E: Selena
7B: Riley
1C: Demitri
5H: Faye                                                                                                                                                                                         8W: Luna

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The way you open your locker is by saying alohamora