Nana Takenouchi is a high school student and aspiring photographer sporting medium-length brown hair, usually tied up, and frequently wears her school uniform: a white shirt, blue skirt, knee-length blue socks, and brown shoes. Her childhood was shaped by parental abandonment when her mother left, leaving her with her father, a formerly renowned photographer who later fabricated ghost images by altering photos. Their relationship deteriorated amidst his professional decline, erupting in a heated argument where she accused him of losing honor and recognition. This confrontation triggered his fatal heart attack, forcing her into independent living afterward. Kenji Satou, a neighbor, became an acquaintance during this time. Nana possesses a natural spirit medium ability, attracting spirits due to an innate tendency to accumulate spiritual energy around her—a hereditary trait suggesting similar capabilities in her family lineage. Unknowingly, her mediumship intensifies supernatural phenomena, such as dangerously activating spirit boards like Kokkuri-san during school activities. Initially skeptical of the supernatural, she discovered her ability when ghosts manifested in her photographs. Two months after her father’s death, 20 consecutive photos featured the same ghostly figure, later identified as his spirit. Seeking help, she contacted Toru Muhyo and Jiro Kusano, who confirmed the ghosts' reality and connection to her mediumship. During a subsequent spirit attack at her apartment, Muhyo intervened, exorcising her father’s spirit and sending it to the River Styx for salvation. This resolution brought reconciliation with her past, allowing her to forgive her father and achieve closure. Following this event, she became a recurring client of Muhyo and Roji, defying their policy against post-case client interactions. She accompanied them to magical locations like the magic law association’s headquarters, meeting allies such as Yoichi Himukai. Her latent powers continued developing, with Season 2 depicting her active engagement in supernatural cases. Under Muhyo’s guidance, she learned to channel her abilities, like summoning a faint spirit to resolve a haunting by facilitating a reunion with its daughter, resulting in a reduced sentence for the spirit. This mentorship signaled her potential for growth within the magical law framework. Characterized by her passion for photography, Nana often uses a Polaroid Spectra PRO camera, employing skills in quick shots and hidden camera work. She dislikes boredom and enjoys activities like hot springs visits and scenic trips. Her personality incorporates a nurturing side, evolving into a supportive figure for Muhyo and Roji, particularly valuing Roji’s tea. Her physical appearance occasionally draws unwanted attention, yet she maintains a determined and proactive demeanor. In the Vector arc, she demonstrated courage by shielding Kenji from a ghost attack, leading to her temporary kidnapping before escaping with assistance. Her development hints at future combat readiness, teased by a Season 2 opening sequence showing her in a fighting stance with a fairy-like entity.