Bat, a young thief raised by his adoptive mother Toyo, leaves his impoverished village to spare her resources, surviving the brutal wasteland through petty theft until captured. Imprisoned, he encounters a formidable warrior whose combat prowess convinces Bat to opportunistically attach himself as a companion, prioritizing survival over loyalty. His brash, self-serving demeanor gradually shifts through exposure to the protagonist’s integrity and the wasteland’s unforgiving stakes. Mechanical ingenuity and proficiency in navigating hazardous terrain make him indispensable, particularly when operating their group’s dune buggy. He grows protective of Lin, a fellow orphan, balancing brotherly responsibility with roguish mischief.

Years later, Bat co-founds the Hokuto Army resistance group, demonstrating strategic leadership while retaining street-smart cunning. His affection for Lin turns romantic until external manipulation distorts her emotions. To free her, he uses crudely learned pressure-point techniques to erase her memories, enabling her reunion with the amnesiac protagonist. In later battles, Bat faces lethal opponents like Bolge, mimicking martial arts through observational knowledge of pressure points—a gambit that nearly kills him when his body fractures under the strain. Advanced combat medicine spares his life, though scars remain.

Ultimately, Bat releases his romantic aspirations, fostering a platonic partnership with Lin while building a stable community. His journey closes as a reformed leader who trades solitary survival for collective purpose, contrasting the protagonist’s eternal wanderings.