Misa Nakamura is a high school student and classmate of Koizumi and Yuu Ohsawa, distinguished by her aubergine-colored hair and eyes. Standing 1.53 meters tall with blood type A, she initially harbors jealousy toward Koizumi due to Yuu's intense fascination with her—a rivalry rooted in Misa's prior closeness with Yuu. Fashion-conscious and attentive to her appearance, her character shifts when a coincidental encounter with Koizumi occurs at a ramen shop shortly after Misa's romantic breakup.

Emotionally frustrated, Misa orders the shop's spiciest ramen, "Hokkyoku," channeling her anger and sadness into consuming the fiery dish. This shared experience sparks an emotional release and an unexpected connection over mutual appreciation for extreme spice. Her passion for spicy foods becomes a recurring bond with Koizumi, transforming their rivalry into a tentative friendship. They occasionally share ramen outings, particularly focused on spicy varieties.

Misa operates within the core group including Yuu and Jun Takahashi, joining their ramen excursions. Her interactions remain centered on culinary experiences rather than deep personal exchanges.