Hitomi Shizuki attends Mitakihara Middle School as a classmate and childhood friend of Madoka Kaname and Sayaka Miki. Hailing from an affluent background, she is widely regarded as popular and conventionally attractive, often receiving love letters. Her appearance features deep olive-colored, slightly wavy shoulder-length hair and bright green eyes. She is typically seen in the school uniform, paired with brown Mary Jane shoes and black knee-high socks. Characterized as kind and polite, Hitomi exhibits discomfort around homosexual topics, reacting negatively when initially suspecting Madoka and Sayaka of a romantic connection. Her wealthy family reportedly used money to compensate for emotional neglect, fostering feelings of loneliness when friends were unavailable. Her schedule includes mother-arranged extracurricular activities like piano lessons, classical Japanese dance, and tea ceremony, pursued against her own wishes. Within the main storyline, Hitomi significantly impacts the conflict involving Kyosuke Kamijo. Observing Sayaka's unexpressed feelings, she confronts Sayaka, issuing a 24-hour ultimatum: if Sayaka doesn't confess, Hitomi will. When Sayaka fails to act, Hitomi confesses to Kyosuke, unintentionally becoming a major catalyst for Sayaka's despair and transformation into a witch. Hitomi later mourns Sayaka at her funeral, believing her death was a suicide linked to the romantic situation with Kyosuke. Supernatural events directly affect Hitomi; she falls under Elly's witch's kiss in episode 4, driving her towards a mass suicide attempt halted by Madoka and Sayaka. Her subsequent relationship with Kyosuke continues but faces strain due to his prioritization of violin practice over their time together. In *Puella Magi Madoka Magica Portable*, an alternate scenario sees Homura intervene. Homura convinces Sayaka to duel Hitomi for the right to confess to Kyosuke. Reluctant to harm Hitomi, Sayaka only retaliates after being struck first. Sensing Sayaka's genuine passion, Hitomi concedes, leading Homura to comfort her after the loss. This results in Hitomi developing a persistent, one-sided attachment to Homura, frequently inviting her out and interrupting magical girl meetings. The *Oriko Magica* spin-off depicts Hitomi under Homura's protection. Trapped within a witch's labyrinth at Mitakihara Middle School, Hitomi and Sayaka escape familiars after separating from Madoka. Witnessing a student's corpse overwhelms Hitomi with grief, but they find safety. Later, she mourns Madoka's death alongside Sayaka after Oriko assassinates her. During the *Wraith Arc*, Hitomi reiterates her ultimatum to Sayaka regarding Kyosuke. Following Sayaka's disappearance, a distraught Hitomi seeks answers from Kyoko Sakura, blaming herself and mentioning Sayaka always spoke fondly of Kyoko. Kyoko reassures her that Sayaka remained hopeful. Hitomi is later confronted by a wraith disguised as Sayaka, which blames her for the conflict and forces a choice between Kyosuke or their friendship. Kyoko protects Hitomi from the wraith's attack. *Rebellion Story* reveals ongoing difficulties in Hitomi's relationship with Kyosuke. Accumulated frustrations cause her to transform into a nightmare. The Holy Quintet subdues it, and Sayaka purifies her. The film clarifies both Hitomi and Kyosuke were among the real humans abducted into Homulilly's Labyrinth; they return unharmed after its dissolution and greet a resurrected Sayaka at the end. Across these narratives, Hitomi maintains close friendships with Madoka and Sayaka, both actively shielding her from knowledge of the magical girl system. She exhibits moments of emotional resilience coping with loss and conflict, though her actions often inadvertently contribute to larger plot developments.