Aya Asagiri, a middle school student adopted by Jirou and Momoko Asagiri following her biological mother's death during childbirth and her father's disappearance, possesses a biological twin sister born shortly after her. Within her adoptive family, she endures physical abuse from her brother Kaname Asagiri, who uses her as his "human stress bag" due to his own abuse by their father. At school, classmates Sarina Shizukume, Erika Kaijima, and Ai Kawano subject her to severe bullying. This relentless torment drives her to daily contemplation of suicide and chronic insomnia. Her existence shifts upon discovering the Magical Girl Site, a mysterious website granting her a magical gun-shaped stick. She initially uses it against her bullies, accidentally teleporting them into an oncoming train's path—an event that deeply traumatizes her. Physically, Aya has shoulder-length black hair and reddish-hued eyes (a blend of pink and brown). Standing 145 cm tall, she is shorter than her twin sister despite being older. Activating her magical stick transforms her eyes to match its emblem (heart, letter Q, Roman numeral IV, or minus symbol) and adds pink-to-red ombre highlights to her hair while causing blood to flow from her eyes. Extremely shy and depressed, Aya habitually blames herself for uncontrollable circumstances. Her kindness manifests as self-sacrifice; she absorbs Kaname's abuse to prevent his mental collapse and risks her life protecting others. She forms profound bonds with fellow magical girls, especially Tsuyuno Yatsumura—later revealed as her biological twin sister. Aya finds comfort with Tsuyuno, expresses admiration for lilies, and kisses her once on the lips and once between the eyes. Her hobbies include reading. She likes animals, chocolate, fruit, plush toys, and meat, while disliking sports, conversations, and public speaking. Her primary magical ability stems from her original gun-shaped stick, teleporting targets to locations tied to her intense emotions or thoughts. After Tsuyuno's death, this power evolves to transfer memories and lifespans, exorcise Site Administrators from hosts, and ultimately enable time travel—transferring her consciousness into her past self or teleporting her entire being into the past. She also temporarily wields other magical girls' sticks, gaining abilities like healing (via a box cutter requiring her blood), force field creation (via a mechanical pencil), and event rewinding (a stick taken from another girl). Aya evolves from a passive victim to an active protector. Tsuyuno's death renders her temporarily mute, communicating only through another magical girl's ability until regaining her voice for battle. She demands other magical girls surrender their sticks to confront the Site Administrators alone, shouldering all risk to shield her friends. Ultimately defeating the King, she uses time travel to reset the timeline, preventing tragedies affecting her loved ones. This erases the Tempest, rewrites her suffering, and creates a new reality devoid of magical girls—resulting in healed family bonds and an end to her torment. Additional details: Her birthday is April 8 (one day before Tsuyuno's, suggesting a midnight birth) and her zodiac sign is Aries. She is the granddaughter of Kii Kogami from Mahou Shoujo of the End. Aya changes schools once for an unspecified reason. Her surname "Asagiri" means "morning fog"; her given name "Aya" means "color."