Import Japanese goods are pretty much everywhere in Hong Kong. Japan's only a 4.5 hour flight away after all unlike UK which can be 14 - 19 hours so it only makes sense for the city to import from there. This includes mainstream Japanese pop culture/otaku Anime store merchandise...

Sogo is one of them at Causeway Bay which is a Japanese department store complete with elevator ladies and all the other customs you would expect from Japan after watching all those J-dramas and Anime....