Ep. 6: A irmã do tubarão Rio retorna à escola em meio aos temores da invasão Barian

6

An uneasy air hangs over Shark. Yuma and Astral think it has to do with an invasion by the Barians, but the real reason is his twin sister, Rio, whom is returning to school! Shark worries about Rio, who ends up being the center of attention when she returns to classes. Yuma and his friends find Rio while she's at the Ikebana Club. Suddenly, the club president, Aika, who has been brainwashed by Girag, challenges Yuma to Duel. While Yuma prepares his Duel Disk, Rio offers to challenge her instead!! (Source: Yu-Gi-Oh! Wiki)