Gorou Kanzaki

Residing in a makeshift wooden shack within the slums, this elderly man served as the devoted grandfather to Jin. To protect his grandson from the Amagi Corps, he disguised his identity with a long beard and orchestrated a deceptive plan to strip Jin of his Zet powers, hoping he could live a normal human life. Although his efforts initially seemed successful, his ultimate dream was thwarted when new medicines emerged that allowed Jin to regain his transformative abilities.