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Kosupure as they say it in land of the rising sun "Japan" is pronounced as coz-play, is in short term for “costume play".

This is a Japanese sub-culture to act of dressing up in costume as favorite anime/manga/game characters. Those fans often make their costumes themselves. Cosplay is very popular and it is a practice, especially at anime conventions.

In Japan, cosplay as a hobby is typically an end unto itself. Like-minded people gather to see others’ cosplayer costume, show off their own elaborate handmade creations, take lots of pictures, and possibly participate in best costume contests.
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