A worldwide disaster is unfolding across the globe. Users of supernatural powers are uncovered following a strange mist, seemingly having taken their own lives, prompting the Armed Detective Agency to probe these perplexing fatalities. The investigation points to an unnamed power holder dubbed "Collector," who may orchestrate the calamity.
Faith and bravery are challenged as the Agency strives to rescue Yokohama and power users worldwide from Collector"s clutches, and prevent further devastation across the city and beyond, forging an unexpected alliance with the perilous Port Mafia to protect them from looming threats and safeguard all those affected for good.