Nanabi is a seven-tailed kitsune, making her the third strongest kitsune, and is said to be one of Tamamo’s right-hand soldiers. As a seven-tailed fox, she is far more powerful than Luka, who barely holds his own during their battle.
In Chapter 1, she follows her master into the Treasure Cave and guards the door at the end. Luka engages her and withstands her Seven Moons twice, however she puts him to sleep. Unfortunately for her, this unlocks his angelic powers and he is able to defeat Nanabi while asleep with various techniques that seem far too powerful for his current state. In addition, he seems to be able to naturally seal the seven-tailed kitsune without using the Angel Halo with one of the techniques, named Daystar.
After Tamamo comes out of the door, she lacks the power to unseal Nanabi and tells her that she must wait. Nanabi eventually leaves along with Tamamo after a long discussion.
In Chapter 3, Nanabi is seen in the Monster Lord’s Castle with other kitsunes helping Tamamo decipher Promestein's discs that detail her evil plots.
