In the alternate universe of Mai-Otome, Nagi Dài Artai is the ruler of the Principality of Artai. His right-hand man is Major Sergay Wáng of the Artai military. He enjoys teasing and flirting with Mashiro. Unlike his Mai-HiME incarnation, this Nagi is outright malevolent and more of a warmonger and mastermind. In the beginning of the series, he tries to take over Windbloom Kingdom, first by proposing marriage to Queen Mashiro Blan de Windbloom (who rejects him) and then by force, with the help of the Schwarz organization and its public figure, John Smith.