What I do personally to get an absurd amount of maid outfits is I rejoin servers around Sumer Hold looking for npc’s that will sell you them, do not get distracted and at least have 500 crowns to buy all the outfits.
The last thing is to weird out your friends, the best way to do this is to get into the maid outfit then buy a black blindfold then go around them and say “Nyaa~”.
they will proceed to unfriend you
Example
