The Kudo family came to England for a trip.
After visiting Baker Street, Shinichi was dragged by Yukiko to visit the filming location of Harry Potter. "Didn't you finish the tour?" "Shin-chan, there is not only Sherlock Holmes but also Hogwarts in England." While visiting Diagon Alley, Yukiko accidentally walked into the Leaky Cauldron (it seems that you can't enter the filming location). As a result, a large group of people packed up and went to the world of HP.
"Mom, where are we?" "This is Diagon Alley, Shin-chan, let's go buy a wand."
Intention: Just be happy