What is Cosplay?
Cosplay has a couple of meanings, the most relevant is the merging of the words costume and play. Literally "Costume Play." Dressing up and pretending to be a fictional character (usually a sci-fi, comic book, or anime character).
There are anime cosplay conventions around the world and as Vietnam is part of the World there is Cosplay as well.
Wikipedia describes it as: Cosplay (コスプレ), short for "costume play", is a performance art in which participants wear costumes and accessories to represent a specific character or idea. Cosplayers often interact to create a subculture centered on role play. A broader use of the term cosplay applies to any costumed role play in venues apart from the stage, regardless of the cultural context. You can find more here.
The last two days there has been an event here in Hanoi at the Royal City Mega Mall with all kind of different characters from Manga, comic books and anime characters. Some did a fine job and I picked out a bunch of characters which I found very interesting and especially one with a an extraordinary well done outfit. The images I liked the best are shown here.