第 3 集: 櫻與麻衣在搬至大垣後陷入集體失憶的困境
2018年10月18日 播出
Even after leaving Fujisawa and arriving to Ogaki, Sakura and Mai had still not encountered one person that had any recollection or memory of Mai Sakurajima” encountered one person that had any recollection or memory of Mai Sakurajima. Upon returning to school together, Sakuta's friend, Rio Futaba, informs them that besides her, nobody at school remembers Mai either. It is then that Sakuta learns of a theory that connects the dissipation of people’s memories of Mai to certain actions and behaviors. As he fervidly rushes to keep her memory alive, Mai sees Sakuta’s determination and reaches a decision of her own... (Source: Aniplex USA)