DBER-022 The devil's body sinks into the abyss.

Saeko Mishima, a special agent who was investigating the criminal organization "Kuroto" who trades in persons to buy and sell organs and sell to prostitution organizations in Southeast Asia, has disappeared. As a result, female investigators went missing one after another. Information analyst Aina Nozaki (Seiran Igarashi), who is distressed by this horrific incident, was Saeko's half-sister. Aina, who longed for her sister, was rushing to analyze the organizational structure of "Kuroto", hideouts, and criminal behavior patterns in order to rescue Saeko.