Rachel Cruz guides the chosen BeyWarriors with her mysterious compass mirror, detecting nearby mythic beast BeyRaiderz and locating hidden coliseum arenas. Traveling alongside her younger brother, Jimmy, she shares the legend of six slumbering mythic beasts whose dormancy caused natural disasters and the decline of BeyRaiderz battles. Her mission is to lead the BeyWarriors to these arenas, where combat reactivates the spirits, restoring prosperity and countering a reawakening darkness.

It is later revealed that Rachel and Jimmy are descendants of Tempest, a legendary blader whose past misdeeds brought misfortune to their family. This lineage fuels Rachel's commitment to guide the BeyWarriors, seeking redemption by undoing Tempest's wrongs and ensuring the mythic beasts' full revival. Her compass mirror, likely tied to this heritage, remains vital for navigating between battle sites and sensing spiritual activity.

Throughout the journey, Rachel observes BeyRaiderz battles firsthand, explaining their mechanics and significance to others, such as demonstrating how tokens collected during matches awaken the guardian spirits. Her role evolves from observer to active participant in the mythic beasts' resurrection, directly supporting the BeyWarriors' efforts to prevent the world's destruction.