Tokiko Hishigata

As the eldest daughter of Hishigata Hospital, she has consistently ranked at the top of her class throughout her academic career. Entrusted with her family's covert ties to the Shadows, she initially allied herself with them in hopes of bringing her deceased mother back to life, wielding the ability to command two Shadows in battle. As Shinpei's repeated loops gradually unveiled the truth, she switched sides and became a pivotal force within the protagonist's group, lending her exceptional strategic mind to help him confront the Shadow threat.