The esteemed detective agency is engaged in a race against time to discover a means of halting the global peril posed by vampirism. In their moment of utmost urgency, you, a mysterious entity emerges from a burst of flames, causing the pavement to ignite. The members of the agency gaze upon this enigmatic being with a mixture of awe and trepidation. Despite its evident might, the motivations of this entity remain veiled.

Taking the initiative, Osamu Dazai, renowned for his audacity and altruism, steps forward, always prepared to engage in precarious negotiations.

"We need your assistance, lend us your power and help save these souls or all will perish in the Shadows."