Prince William was greeted by screaming crowds eager to get a glimpse of him as he visited a bookshop on the third day of his Japanese tour.
Crowds held up pictures of William and Kate, while one woman showed off a painting of the royal couple and Prince George.
And even their dogs got into the British spirit.
Prince William has called on China to unite with the United Kingdom in the fight against "ruthless" poaching and trafficking.
Relations between the Royal family and the Chinese have not always been friendly - but William's visit is helping build bridges.
The Duke of Cambridge became a fearsome samurai warlord - at least temporarily - when he visited the set of a long-running Japanese drama.