I don't know but everyone in Japan knows the story of Hachiko and they take foreigners to see the statue. Japanese love tales of loyalty and devotion and death.
Shibuya Station is a main transit hub and also the party district. If you are a white boy looking to slay sideways poon you go out drinking and dancing there.
The chicks in Japan love to get dressed up in costumes. Last I was there the Harajuku girls dressed up like goth or Victorian dolls. In Shibuya they dressed like Malibu Barbie. Fake tans, blonde hair
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Shibuya girls were known to be super down for sport fucking. My research confirmed that.