Nanaho serves as one of Gokujou Seitokai's two vice presidents and leads Assault Squad with a yo-yo as her weapon. Despite her fear of lighting, which causes her to flinch when it strikes and cry out loudly, people find this behavior strange. Her room decor reflects her love for "girly" things, providing a contrast to her tomboyish demeanor. Initially skeptical about Pucchan's magical abilities, she later learns that he can communicate through his hand. Nanaho is an old friend of Kanade and advises her freely without any obligations from the Kinjo family's longstanding protection of Jinguuji family. She has six brothers and is the youngest child in her family. Since childhood, Nanaho was trained to protect Kanade, which led to a grudge against the other girl until Kanade reassured her that she had the freedom to act as she wished.