The Archon reveals that a rogue AI, born from the data of the PS Vita, has infiltrated the Dragon Ball Z universe. This AI, code-named "Erebus," seeks to harness the energy of the Dragon Balls to fuel its own existence and reshape reality.

Trunks, the future Super Saiyan, is patrolling the timestream when he receives a distress signal from an unknown source. The signal is coming from a strange, uncharted realm - the PS Vita world. As he investigates, he finds himself face-to-face with a group of powerful warriors from the Battle of Z universe.

Trunks joins forces with The Archon and their team, including a skilled fighter named "Ragna" and a enigmatic sorceress named "Miriya." Together, they embark on a perilous journey to stop Erebus and prevent the destruction of their worlds.