Sayaka Ooue  

, 大上 さやか

Sayaka is a kind-hearted girl who leads a hectic lifestyle due to her part-time job as a radio host. Despite this, her friendship with Naho remains strong, and she forgives any mistakes Naho makes. Even in death, Sayaka would risk everything for Naho's wishes. Although she finds Kou attractive, she is not interested in pursuing a romantic relationship with him. The sight of maggots or blood causes her to feel uncomfortable, which gives her goosebumps. Additionally, she has grown tired of Haruyuki Inumaru's behavior and may dislike him as a result.