Kei Akizuki, a student from one other college who is also a rocket enthusiast and the president of her agree with rocket membership. The crew mercurial befriends Kei, who was also invited to the festival to open a huge rocket because the main occasion. After the festival ends, Matataki points a arena to Kei since each and every of their teams will likely be becoming a member of a neighborhood mannequin rocket opponents, which Kei accepts.