Isumi Saginomiya

Often seen in a traditional kimono, this wealthy, black-haired girl shares a deep, long-standing bond with Nagi. Their friendship began years ago when she offered genuine interest in Nagi's early manga efforts, leading to a playful childhood marriage proposal. Though soft-spoken and a talented cook, she frequently loses her way by forgetting her destinations, often vanishing unexpectedly. Driven by a kind heart, she harbors secret feelings for Hayate and deeply cares for his happiness.