Akane Senri begins her life as an orphan at the Martel-funded Enishi House. A mute child, she frequently wandered into hazardous locations, including a forest hosting supernatural conflicts. Kotarou Tennouji rescued her during a clash between Gaia and Guardian forces, leading to her placement under Gaia and Sakura Kashima's care. She attends Kazamatsuri Academy as the Occult Research Club president, despite her personal skepticism about the supernatural. This contradiction, combined with her political ties and wealth, earns her the "School Witch" moniker. Introverted and crowd-averse, she prefers solitude, often playing video games alone in the clubroom. She displays cynicism and bluntness, mocking others' beliefs while remaining more reserved with close associates. Physically, Akane has amber eyes and flaxen hair usually tied with a ribbon. She wears the standard school uniform, a black dress elsewhere, and occasionally Gaia attire: a hooded black cloak secured by a red brooch. Within Gaia, Akane is designated to inherit the Holy Woman's memories through transcription, transferring predecessors' experiences and powers. This role imposes significant emotional strain from traumatic memories, leading to psychological instability. Her duties overseeing Gaia disciples and attending global meetings gradually erode her personal relationships. Her abilities focus on summoning familiars, though she lacks proficiency in direct control. Key familiars are a four-legged scout bird for reconnaissance and messaging, and a two-legged leaf bird deployed after the scout's destruction. She primarily directs Gaia disciples to utilize familiars for her. A pivotal development sees her initiate the Song of Destruction using Gaia disciples, aiming to trigger global environmental collapse. This culminates in her summoning the Earth Dragon against those trying to halt the ritual. Following these events, in the *Harvest Festa!* continuity, she adopts the surname Kashima, signifying formal adoption by Sakura Kashima. In the crossover *Kaginado*, Akane appears in chibi form alongside other *Rewrite* characters. Her portrayal maintains her core traits during brief comedic segments, such as space travel sequences with the Occult Club, without significant independent development or backstory expansion.