This is a MAP. It tells you where the Maid Cafes are. Maid Cafe is the really unique cafe because the stuffs look like a maid. lol You can demand or order the maid what ever you want. lol
These kinks of clothes are famous in Akihabara. You can see some people wear these clothes in Akiba. If you wanna see that, go to Akiba and check it. lol