Tomisaburo Tengai, the younger brother of Maria Tengai, belongs to a psychically gifted family journeying with their precognitive grandfather. After the 13 Apostles annihilate their village and kill their parents, the siblings dedicate themselves to thwarting the Apostles’ schemes. Their grandfather’s prophecy casts Shinichi Kuruma, the vengeance-driven protagonist, as a potential herald of apocalypse—a warning that shadows their alliance.

Bound by shared trauma, Tomisaburo and Maria initially aid Shinichi in hunting the Apostles. Maria’s identity as the Virgin Mary’s reincarnation draws lethal attention, as her powers are coveted by the Apostles to enact their apocalyptic vision. Her death in Shinichi’s arms during the Great Destruction—a cataclysm marked by devastating earthquakes—fuels Tomisaburo’s resolve to persist in their mission, despite his grandfather’s caution that Shinichi’s rage risks further ruin.

As threats escalate to genetically engineered foes and cloned gods, Tomisaburo’s latent precognition emerges, steering critical choices and exposing dangers tied to Shinichi’s psychic bonds. His loyalty remains steadfast even as battles ascend to divine conflicts and world-ending stakes.

Tomisaburo’s story intertwines inherited psychic burdens, fractured trust in prophecy, and the tension between preventing destruction and enabling it. His alliance with Shinichi balances wary vigilance against the latter’s volatility with an unyielding drive to dismantle the Apostles’ legacy.