Akiyama Shinobu is a best-selling novelist who writes under the pen name "Akiyama Shinobu." At 20 years old, she lives alone in her studio apartment and enjoys contact sports. She has a love for black clothing and can be quite harsh towards animals and people. Akiyama carries scissors named "HasaJiro" with her at all times, which she uses for self-defense or to emphasize her point. Although she is able to read Kazuhito's mind, he finds it frustrating as he cannot keep any secrets from her, including his sexual fantasies. Akiyama is insecure about the size of her breasts and there are hints that she has feelings for Kazuhito.