Haruku Aoki, an 8-year-old boy, finds himself abandoned on a desolate beach after losing both his parents. Confused and alone, he is approached by Kazuki Takahashi, a mysterious figure who claims to be his new mentor. Initially hesitant, Haruku agrees to follow Kazuki, leading him to an extraordinary revelation: a hidden planet high above the skies, where every inhabitant possesses unique powers—except for those on Earth.
