Isaac Dian (アイザック·ディアン, Aizakku Dian) and Miria Harvent (ミリア·ハーヴェント, Miria Hāvento) are fictional characters in the light novel and anime series Baccano! written by Ryohgo Narita and illustrated by Katsumi Enami. Isaac and Miria are a pair of idiotic and eccentric lovers who dress up in costumes and commit strange robberies in Prohibition-era United States. In 1930, the duo are two of many characters who mistake an immortality elixir for alcohol and drink it at a celebration, inadvertently gaining immortality and eternal youth. The next year, they board the Flying Pussyfoot express train and survive the bloody hijacking that occurs. Isaac is arrested for various thefts in 1934 and imprisoned on Alcatraz Island. He is released the same year and reunites with Miria. The pair continue to live