After defeating a mysterious foe, Yuuma Tsukumo, aided by Kaito Tenjou and Ryouga "Shark" Kamishiro, has foiled the Barians' schemes. Yet, Yuuma remains on a mission to recover the Number Cards in order to restore Astral's memories. The Seven Barian Emperors learn of Yuuma and Astral's efforts and start gathering the cards themselves to reach their final objective: destroying Astral's world in return for saving their own. Although only five of the emperors are present, they unanimously resolve to annihilate Astral and Yuuma once and for all. Meanwhile, wielding their newly acquired ZEXAL powers, Astral and Yuuma strive to eliminate the enemy force that threatens Earth and the rest of the universe. Yu☆Gi☆Oh! Zexal Second reveals the mysteries and unpleasant surprises that follow in the wake of Yuuma's hardships. As Astral struggles to accept his past and the consequences it may have brought, will the gods continue to shower their fortune upon Yuuma on yet another perilous adventure?