Rina Shioi, thirteen years old, endured brutal bullying involving force-feeding insects and having her face shoved into bowls of bugs, resulting in a crippling insect phobia. This abuse plunged her into deep depression, culminating in a suicide attempt by hanging. The attempt was interrupted when the Mahou Shoujo Site appeared on her laptop, delivering a magical stick to her home. Her original stick manifested as a hammer, granting the "Strong Force" power from administrator Nana. This allowed her to shatter materials like concrete or human skulls with minimal force. After obtaining it, Rina likely killed her bullies for revenge. She later learned of the "Tempest" catastrophe. Manipulated by Nana into becoming the "Magical Hunter," she was promised survival if she killed other magical girls and stole their sticks. Rina embarked on a murder spree, ambushing victims like Mikado Ikemata – whose death traumatized Nijimi Anazawa – and Yu Sazanami, stealing Yu's electricity-based stick. Using a stolen camera stick, Rina permanently altered her appearance from her original short stature, brown hair, and freckled features. Her new form possessed pink hair, greater height, a larger bust, and distinctive heart-shaped earrings. When wielding her hammer stick, her original diamond emblem appeared; using stolen sticks displayed other emblems like stars or triangles, always turning her hair tips cyan and triggering nosebleeds. Trauma and manipulation drastically altered Rina's personality. Once analytical and sarcastic, she became cold and sadistic as the Magical Hunter, showing no remorse. She employed strategic deception, luring targets via texts, and relished the violence. Overusing her sticks eventually caused a coma. Revived by Kosame Amagai, Rina joined Aya Asagiri's group to investigate the Tempest. She expressed remorse for her actions, apologizing to Nijimi, and developed protective loyalty towards her new allies. Her acquired sticks provided diverse powers: * **Electric Discharge**: Stolen from Yu Sazanami, enabling electricity blasts, levitation, and flight, though overuse accelerated lifespan depletion. * **Force Field**: A mechanical pencil stick stolen from Mikado Ikemata, creating defensive barriers or traps. * **Transport Magic**: A lighter stick permitting long-distance spellcasting. * **Healing**: Exclusive to the anime, used to heal Sarina Shizukume. Rina retained hobbies like gaming, internet surfing, and anime, favoring foods such as pancakes and avocados. She avoided crowds, studying, and insects, and could not return to her original home due to her altered appearance. Her arc concluded by aiding the group's mission to stop the Tempest, evolving from a manipulated killer to a self-sacrificing ally.