Bavi Stock, a young boxer imprisoned on a prison planet under Ventika Empire rule, serves a murder sentence stemming from an accidental death in the ring. His incarceration draws the rebel G.P.P., who recruit him as a pivotal figure in their struggle against imperial tyranny. Defiant in the face of corruption, Bavi’s refusal to throw a rigged match underscores his unyielding principles. After extraction by Agent Kate, he embarks on covert operations to dismantle the empire’s power, his tactical role ambiguous beyond symbolic significance to the rebellion.

Missions propel him through hovercraft races and planetary treasure hunts, where alliances and rivalries unearth echoes of his past—a surrogate kinship with Kate, Sammy, and Mooma, and veiled ties to a lineage entangled in the empire’s conflict. Encounters with sentient creatures and fragmented revelations about his ancestry hint at deeper connections, though official records leave these threads unresolved. Across two OVA episodes, Bavi’s narrative prioritizes combat prowess and steadfast loyalty to the rebellion, his personal growth secondary to relentless action-driven pursuits.