A group of friends—Nonoka Komiya, Koharu Shiihara, Shione Togawa, and twins Yuzuki and Souta Mizusaka—once attempted to summon a flying saucer to grant their wishes. After thinking that they failed, they called it a day. However, soon afterward, Nonoka abruptly moved out of Kiriya City, breaking the bond of their circle. Little did the group know, they were successful and the saucer has been floating in the sky since...