The Taishou period did not finish after 15 years, but lasted another 25. A girl decides to marry a man she doesn't even know the name of in order to safeguard her dwindling family. However, soon before the wedding, the girl's younger brother committed himself by self-immolation and was discovered carrying an old book in his hands. The "Imperial Library Intelligence Asset Management Bureau," also known as "Fukurou," appeared in front of the befuddled young girl, claiming that there are "Maremono," or books that have a profound effect on their readers. Furthermore, since since the event involving the girl's younger brother, she has accidentally gained the capacity to perceive "Auras" (the Maremono's feelings).