Mitsuko Okino is a twenty-year-old actress and a God candidate in the competition known as KamiErabi. She carries an AAA rank, indicating a high level of threat or capability among the participants. Her background as an adult video actress shapes her public persona, but beneath that she possesses a natural charisma that draws people toward her and remains perpetually cheerful, seldom appearing troubled even in the midst of dangerous conflicts. Her core motivation is tied to her participation in the divine contest, though her personal wishes are intertwined with her role as a candidate. As a protagonist, she is a central figure in the story, navigating the battle royale alongside other chosen individuals. Her special ability is named Mercury, a teleportation power that manifests through a sacred artifact in the form of a pair of boots. By performing dance steps reminiscent of tap dancing, she can open a doorway to any location she envisions and can transport herself as well as other people through this portal. This power makes her a highly mobile and valuable ally. Over the course of the series, she undergoes character development and becomes an ageless semi-permanent being, reflecting the transformative nature of the competition. Her key relationships involve the other God candidates, though her natural charm and upbeat attitude help her form connections in a high-stakes environment.