TV-Series
Description
Madoka Harumi is the younger sister of Kazuhito Harumi. This 15-year-old high school student possesses bright strawberry blonde or orange hair, green eyes, and fair skin. She typically wears her school uniform: a dark shirt featuring red and white collars, an orange mini skirt, black leggings, and brown shoes, often accessorized with a distinctive leaf-shaped hairband.

Madoka initially displays a cheerful, loyal, and protective personality. She excels academically and in sports, cherishing time with her brother. Despite having disastrous cooking skills, she frequently prepares curry for him, resulting in meals often shown as inedible or censored. Her fervent attachment manifests as a brother complex, driving her to seek Kazuhito's attention and spark jealousy when he interacts with other girls, feelings he remains unaware of.

Kazuhito's death during a café robbery triggers severe psychological trauma in Madoka. Plunging into grief-fueled instability, she fixates on the belief he might still be alive. She embarks on a desperate search, blaming his favorite author, Shinobu Akiyama (later revealed as Kirihime Natsuno), for "taking him away." This dark turn sees her destroy Akiyama's books and adopt violent tendencies, wielding the high-tech transforming weapon "Tuna Eater," which shifts from an electric knife to a dual-bladed chainsaw ("Genocide Mode") or a cannon ("Destroy Mode").

A pivotal confrontation occurs with Kirihime Natsuno. Kirihime challenges Madoka's destructive path, delivering a speech stressing Kazuhito's disapproval of her actions. Their encounter escalates into a physical battle where Madoka is subdued. This forces Madoka to confront her delusions, triggering an emotional breakdown that leads to her recovery. She abandons her obsessive quest, reverting to her former self.

Afterward, Madoka bids farewell to Kazuhito, now reincarnated as a dachshund, and Kirihime. While acknowledging the dog isn't her brother, she continues affectionately calling him "Kazu-nii," symbolizing a partial retention of their bond alongside acceptance of reality. She returns home, resuming her life with a stabilized mindset.