Prologue

10 years after the events of Yuyuyu: Dai Mankai no Shou. 14-year-old Yume Honikawa and her 8-year-old sister Rena from Hiashu Elementary School set up a Triwizard Club with Yume, Rena, Mana Sabaku and Yuna Yukine. Girls also install applications that help them find themselves when they get lost. However, the Vertexs come and Taisha chooses the club to fight.