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Trivia / Sister Princess

  • Unintentional Period Piece: The show's general enthusiasm about and fascination with e-mail makes pins it firmly to the late nineties and early 2000s. Also, one episode has the girls very excited to have Rinrin's latest technological breakthrough—a handheld device that allows them to send e-mails wirelessly.

http://tvtropes.org/pmwiki/pmwiki.php/Trivia/SisterPrincess