Aneko Matsuda, a girl with a secret past, has been friends with Kozume Kenma for quite some time, pratically since they were kids. It was a simple, bored life she had being friends with this neko boy. And yes, of course she knows Kuroo Tetsurou, even if she's not close to him as she is to Kenma. However, after a practice match against Fukurōdani, things take a small turn. And her life has never been the same again.