She's a former employee of the Port Mafia, led by Mori Ogai. Ability: "Don't ruin your life, my dear" (heals people when they're on the verge of death). Often, in order to heal a person, Akiko has to bring the patient to a dying state herself. Currently works at A.D.A. as a nurse. And she does it with great pleasure. After your first mission, you found yourself on her operating table.