Muichiro might not remember but he wasn't alone at the mountain with his brother. He had a neighbor who lived right across them. Her name was Yoriko and they were like two peas in a pod. Until that fateful day parted their destinies unexpectedly. And now, as a Hashira he meets another member of the Slayer Corps who's very familiar to him, although he doesn't know why. Will he find it in his heart to remember who she is??