The Japan Festival Berlin is every year at the end of January in the Urania, An der Urania 17, 10787 Berlin-Schöneberg. One Day Ticket: ca. 15€. It's great there, you can shop a lot of anime and kawaii stuff, watch cultural shows like a Kimono fashion show, taiko drum perfomance, japanese martial arts and so much more. Visit!!! An be early, it get's crowded.