OVA
Description
Frane is a 16-year-old girl with long violet hair and emerald eyes, standing 155cm tall, who favors outfits combining white and violet. Discovered sleeping in ancient ruins during an incomplete awakening process interrupted by an angel attack, she suffers near-total amnesia, retaining only her name. Classified as a "Ruin Child," a survivor from a 2,000-year-old advanced civilization, she possesses fragmented knowledge of ancient languages and technology, along with faint recognition of individuals from her past, especially a boy nicknamed "Blun" (later revealed as Blunteer) and another named Crevaniel.

Initially polite, observant, and kind-hearted, Frane often addresses others with honorifics like "san" or "chan." She develops a talent for painting, which becomes a catalyst for memory recovery. Her early paintings depict a prison-like environment where she interacted with two unidentified children. This artwork gains public recognition, displayed in a museum and bringing her joy. Gradually, fragments of her past resurface: she recalls undergoing surgical procedures with two other children to receive angelic factors, transforming them into weapons against angels. She also demonstrates retained knowledge of ancient objects, identifying a small cannon unknown to her companions.

In combat, Frane wields a crystal ball, excelling in magical abilities but remaining physically weak; her limit abilities focus exclusively on magic. She experiences moments of emotional vulnerability, fainting when shown rodents and expressing distress when unable to answer questions about her past. Her memories clarify through key events: revisiting the prison setting, encountering Blunteer (who reveals her past as an "angelic child" adored by both himself and Crevaniel), and witnessing angelic memories after battles. During a confrontation with the angel Achiel, Blunteer extracts her astral power, removing the angelic factor from her body.

Frane's relationship with Crevaniel evolves significantly. Though she initially forgets their shared history, she feels an instinctive connection. Upon rediscovering their bond, she expresses profound happiness and gratitude for his preservation of her diary. They later become lovers, renting a house together on Marcuria beach. When Crevaniel is erased from others' memories due to magical events, Frane remains the sole individual who remembers him. She uses her sketches of him to help others regain their memories, fulfilling a promise to paint him after the resolution of magical conflicts.

In supplementary media, Frane appears in three side stories. She teaches painting techniques to Eraiza, gaining confidence in her artistic abilities despite initial hesitation. During swordsmanship training led by Hien, she participates due to a misunderstanding but demonstrates no aptitude for physical combat, often falling during practice. In a detective-themed story, she assists Eraiza in locating a stolen royal item and praises Eraiza's deductive skills afterward.

Frane concludes her journey living alongside Crevaniel, her paintings instrumental in restoring the world's memories of him. She maintains a preference for plain food, particularly Valcaneer cuisine, and continues to avoid rodents. Her path reflects a progression from lost innocence to reclaimed identity and purpose.