For Japan-starved Europeans. The Paris Japan Expo looks like it will have a really eclectic line-up. Manga, anime, gyaru culture and fashion, pro-wrestling, heavy metal bands, origami, calligraphy, martial arts and a huge cosplay event. NHK will be making a programme there on "Cool Japan". Quite how all that will fit together is anybody's guess. All at the Parc d'Expositions with tickets from 10 to 25 euros.
http://japan-expo.com/en/index.php