* NoDubForYou: Mainly because the heavy amount of English jokes would be next to impossible to localize.
* TouristBump: Fosse Farmhouse, a hotel in Wiltshire, England, was used as the basis of Alice's house. After the anime came out, it became extremely popular with Japanese tourists to the extent that [[https://www.bbc.co.uk/news/uk-england-wiltshire-44368853 the BBC ran an article on it]].
* WhatCouldHaveBeen:
** The author mentioned in the first volume's dustflap that she originally wanted a NewTransferStudent from a ''fantasy world'' rather than a foreign country. Which is a good news, as that concept is already somewhat of a dead horse.
** The work's editor wrote in the art book that originally Shinobu was intended to be a ''boy'' who had a better grasp of English than she does.
** After turning Shinobu's original gender from a boy to a girl, it was mentioned that her original name was Kanako.
** The original names for Alice, Aya and Youko were going to be Molly, Yama and Mao respectively. Aya and Youko were originally going to be from abroad.
** Karen was designed after the original 4 girls. She was originally going to be called Erika. Her hair wasn't going to be as long and she lacked her signature hairstyle.