Ootori Sacco is a second-year student at the middle school of Enoshima Private Academy, where the best students are gathered and given an education for the gifted. She has a fearless personality, and is a victim of her classmates. Sacco's childhood friend, Ichikisayo, has died. At her funeral, Sacco was supposed to have presented Nadeshiko flowers to her, but one day, when he goes to school, Sacco appears and talks to him about myths and things that happened 12,000 years ago. ...... Translated with DeepL.com (free version)