Torako Kageyama, an energetic and rebellious high school student, defies norms with her distinctive uniform style, consistently forgoing her blazer. Her name, bearing the kanji for "tiger," aligns her symbolically with the White Tiger of the West, mirroring her bold, direct nature. Raised initially by her biological mother until her passing during Torako’s elementary years, she later relocated to her father’s household, where simmering tensions with half-siblings Kitsune and Oniyuri persist—though Oniyuri’s unwavering kindness intermittently softens their rift.

Prone to fleeing home during conflicts, Torako frequently seeks refuge with childhood friend Suzume Saotome. Despite habitual class-skipping, her above-average grades reveal latent intellect. Her social circle contrasts sharply: Tatsuki Iizuka’s composed elegance clashes with Torako’s impulsivity, while reserved bibliophile Tōma Kazamatsuri shares a bond anchored in a shared childhood promise.

In *Hyakko Extra*, Torako joins Tōma’s quest for a new reading haven after their café closes, stumbling upon a cake shop where her spirited sampling of desserts underscores a mischievous streak. The outing subtly unveils Tōma’s quiet romantic longing, complicating their rapport.

Torako’s defiance of authority paradoxically lands her on the discipline committee after early absences. Her interactions with peers—openly bisexual class president Nene Andō and misunderstood delinquent Ushio Makunouchi—position her as a social catalyst. A turning point emerges when Suzume unexpectedly kisses her, reshaping their lifelong friendship.