Aoi Shichimiya is one of the main characters in the visual novel "Nanairo Reincarnation." She is a gentle and somewhat mysterious girl who works as a shinigami, guiding souls to the afterlife. Aoi is compassionate and supports the protagonist as he adapts to his new life at the old mansion filled with spirits. Her role is pivotal to the story, as she helps unravel the mysteries of reincarnation and the connections between the living and the dead.