Shigure, a fourth-grade elementary student and the protagonist’s classmate, radiates effortless popularity among her peers. Her bond with the protagonist blossoms when she discovers his sketches of birds, sparking a shared passion for avian care that leads them to collaborate in maintaining their school’s hidden aviary. This partnership cements their friendship, marked by quiet curiosity and mutual respect.

When her family abruptly relocates due to her father’s career, she struggles to conceal her grief, her tearful silhouette glimpsed alone in the rain. This impending separation becomes the emotional pivot for the protagonist’s heartfelt confession. Though her inner thoughts remain unvoiced, her attentive engagement with his art and visible sorrow over leaving reveal a tender, empathetic nature.

Her departure triggers a surreal, climactic chase, symbolizing the protagonist’s desperate attempt to preserve their fleeting connection. The narrative frames her exit as irrevocable, a poignant reflection on childhood bonds destined to dissolve with time. Her story arc remains confined to this pivotal role, leaving her post-move life unexplored.