Original maid costume
idolm@ster Pink Diamond
Nitro Super Sonic
Super Sonico Maid Version
Umineko no Naku Koro ni
Attack on Titan (進撃の巨人) is very popular in Japan. Now the boom of the comic goes into US market as well. The Manga comic of Attack on Titan has got 1st position on 2nd week of October on a comic ranking in U.S..
According to an article from niconico news, girls and boys comics like Naruto and Sailor Moon has ever got the top position, but it’s very rare to get the 1st like Attack on Titan. I heard that you cannot stop reading it once you start the Attack on Titan. I’ve not read it yet, but it’s so popular both Manga and Anime in Japan. They have a plan to publish some spin-off manga in summer 2014.
Cosplay for Attack on Titan should be challenging!