Sakurako Kujou is a main character. A mysterious girl who collects various kind of skeletons and bones, which she displays in her home.

She is beautiful and intelligent, but has difficulty socializing because of her aloof and superior demeanor. Thanks to her knowledge of physiology, her appreciation of detail, and having been mentored by a renowned forensic scientist (her uncle Shitara Kujou), she is an exceptional detective and frequently aids the local prefectural police in their murder investigations.