Saya's world is turned upside down as repressed memories flood her mind after a dose of Elder Bairn blood. Friends are revealed to be enemies as the truth about Saya's past and the town's dark secret are finally brought to light.
Saya begins to question her past, her memories and even her identity, but is interrupted by an Elder Bairn before she can get any real answers from her father. Later, in the shrine's archives, Saya and her teacher make a shocking discovery.
Saya returns to the shrine to find her father unconscious on the floor, leading her to wonder if he might be keeping something from her. Later, Saya must choose between keeping her secret and saving her classmates when an Elder Bairn attacks the school.
An Elder Bairn attacks the shrine and kills one of Saya's friends. With school canceled out of fear for the safety of the students, Saya is curious as to why Nono is wandering the streets. Also strange, Nono's shadow seems to have a life of its own.
When gym class is canceled due to bad weather, the students take turns sharing ghost stories. To Saya's surprise, her teacher's tale seems to hold answers to the mysterious covenant between humans and Elder Bairns.
The baker has gone missing under mysterious circumstances, leaving everyone a little on edge. However, Saya has bigger problems to deal with---namely a shape-shifting Elder Bairn with a cryptic message for the young shrine maiden.