Jin Kanzaki may appear as an average street kid, but hidden within him lies a supernatural power he uses for altruism, albeit for a fee demanded by his grandfather. When faced with a dangerous entity linked to enigmatic killings, Jin's routine takes a drastic turn. Amidst his combative approach to challenges, a faction relentlessly pursues someone marked with a ring symbol. Unveiling profound mysteries, Jin emerges as a crucial piece in the unfolding enigmas of the world.