Yashiro Nene is a first-year high school student at Kamome Gakuen's High School Division. She has made a contract with Hanako and is now bound to him as his assistant.
Nene is a very outgoing and earnest girl who seems to greatly desire the approval of her peers. She is generally kind to others, sometimes to the point of naiveté. She genuinely wants to help those around her, and is even willing to risk the dangers of associating with supernaturals in order to do so. Because she is often reliant on Hanako to protect her from dangerous supernaturals and developed a habit of calling his name when she is in need of help, Nene wants to find a way to protect Hanako and her other friends.
However, Nene is also rather insecure, particularly about her ankles and whether or not people actually like her. In addition, she is a hopeless romantic who easily falls for charming looks, which have led her to many poor experiences with men. Nene intensely desires for a boyfriend, even going through desperate measures such as attempting to call Hanako to grant her wish and recklessly using a matchmaking supernatural item she isn't familiar with. Due to her past crush expressing interest in girls with "feminine" traits, Nene worked to become adept at cooking, sewing, and gardening as an attempt to impress him. She worries that she is not feminine enough to ever find a boyfriend and is afraid of heartbreak, due to her past experiences with men.
Nene is able to see supernaturals, such as Hanako, without having any prior affiliation with them. This is later revealed to be a result of her being near the Far Shore, with only about a year left her in her lifespan.
After ingesting the Mermaid scale, Nene's skin turns to scales whenever she is in contact with water. Additionally, she transforms into a fish if her body is completely submerged. By being bound to Hanako in a contract, she is able to stay in her human form outside of water. Occasionally, her scales will fall off and can be used as a rare currency in the supernatural world.
Nene is capable of changing rumors surrounding the Kamome Gakuen supernaturals. She has done this previously with the Kodama tree, Yako, and the Mokke. This ability may be due to her kannagi status, or because she has ties to one of the Seven Mysteries.
