Against my Wish - S1.E9

Saya struggles to keep the Furukimono from killing more students as she becomes tormented with flashbacks. Although she eventually manages to kill the Furukimono, all of her classmates besides Itsuki had been killed. After lamenting to the dog, who poses more questions about her nature, and being visited by Shinichirō, Saya comes to the realisation that only her class had been called to school that day. As Shinichirō's attempt to confess to Saya is put off by the arrival of Tadayoshi, Saya questions why she doesn't know her mother's name.