few things japanese are awesome in:

 

beef: kobe

gardening: japanese rock gardens

comic books: manga

movies: kurosawa

cars: toyota

electronics: sony

fast food: sushi

tea: way of tea

suicide: aokigahara

fashion: comme des garçons

military sacrifice: kamikaze

cutlery: deba bocho

100km running: takahiro sunada

caligraphy: shodo

organized crime: yakuza

assassins: ninja

truck decorations: dekotora

web design: yugo nakamura

 

please add more in comments…