Astral Saga is the first saga from the Yu-Gi-Oh! ZEXAL series. Its main plot concerns the arrival of Astral to Earth and his loss of him memories, joins along with Yuma Tsukumo to gather the Numbers. After coming up against a boy named Kite Tenjo, who is hunting after Numbers, Yuma and Astral gain the ability to combine their forces using the power of ZEXAL.
