Sora Sarutobi, the serious and earnest class representative of Class 1-A, frequently clashes with Yachiyo Inugami due to their opposing natures. Her appearance features long, wavy brown hair, glasses, and a teardrop-shaped mole beneath one eye. She shares a close bond with her childhood friend Hibari Torikai, often absent from school due to health issues; Sora visits Hibari's home regularly to offer care and support. A responsible nature also fosters a rapport with Aki Hiiragi, as both manage energetic companions.

Her surname Sarutobi means "monkey," leading others to link her with simian qualities. This association manifests in her intelligence, her fondness for bananas and peaches, and occasional playful mischief. However, Sora strongly dislikes references to this animal connection, reacting coldly or defensively when teased. This aversion extends to dogs in general and Yachiyo Inugami specifically, rooted in cultural folklore depicting monkeys and dogs as adversaries. Consequently, she competes academically with Inugami, often attempting but failing to surpass her.

Sora's serious demeanor can lead to unintended consequences, especially when she falls ill, causing erratic or unusual behavior. Over time, interactions with Inugami's carefree personality introduce noticeable tsundere-like qualities into her character. She enjoys playing the board game Go.