Saki Kawasaki, a second-year student in Sobu High’s Class 2-F, stands out with her tall, slender frame, long pale blue hair streaked with faint purple highlights, and a subtle beauty mark beneath her right eye. Her modified uniform—unbuttoned shirts, untucked blouses, and handmade scrunchies—defies dress codes, mirroring her independent streak. Though her aloofness, habitual tardiness, and blunt speech initially paint her as a delinquent, beneath lies a fiercely responsible soul devoted to her family. As the eldest sibling in a large household, Saki balances multiple part-time jobs, including covert night shifts at a café, to fund summer school and ease her parents’ burdens. Her relentless work ethic, driven by a resolve to attend college independently, catches the attention of the Service Club, which secures her a scholarship. This allows her to shift focus to academics and nurturing her younger siblings, particularly Taishi and Keika, who affectionately dubs her “Saa-chan.” Socially awkward, Saki’s cold exterior often masks her discomfort with casual interactions. Her reluctant friendship with Hina Ebina blossoms during collaborative projects like crafting festival costumes, gradually drawing her into group activities such as school trips. Tensions linger with Yumiko Miura, though mutual respect occasionally surfaces, such as Yumiko acknowledging Saki’s practical cooking skills. Her dynamic with Hachiman Hikigaya evolves from initial skepticism to mutual trust. After he uncovers her hidden burdens and aids in alleviating her family stress, shared experiences—summer cram school, event planning—reveal glimpses of vulnerability: blushing, averted gazes, or clutching his blazer during a haunted house. Skilled in sewing, karate, and simple cooking honed through childcare, Saki crafts costumes and alters uniforms, earning peers’ admiration. Academically strong, she pursues liberal arts with plans for a public university. Family remains her anchor, evident in her meticulous care for her siblings and protective instincts extending to Komachi Hikigaya via Taishi’s bond with her. Subtle quirks—a cat allergy, a worn lighter—hint at untold depths. Her journey from isolated outsider to someone cautiously embracing connection underscores the quiet resilience shaping her identity, where familial duty and hidden tenderness coexist beneath a stoic veneer.