Seeing as she's an idol, Sayaka has a cheerful, sweet, and supporting personality. Despite her idol career, Sayaka actually enjoys cooking. Sayaka develops a bond with Makoto Naegi, whom she considers her friend, assisting him on every occasion in Chapter 1. However, she tends to hide her feelings when she is under great pressure by putting on her public persona.

Voice reference: https://www.youtube.com/watch?v=Drl3hMulbXE