Mayuka Sanagi is a secondary character in the anime Ange Vierge. She is a soldier holding the rank of Vice-Lieutenant and originates from the Green World, known as Grüne Schild. She is a Progress, a type of being that fights against the threat of Uroboros to protect humanity. Mayuka is the younger sister of Ageha Sanagi, and the two share a close but often strained sibling dynamic. Unlike her more diligent sister, Mayuka is lazy, dislikes work, and tends to be air-headed and immature. Her naivety is apparent in her behavior, and she often addresses Ageha as sister during training or missions, which typically results in a slap from her older sibling.

Despite her lack of motivation, Mayuka possesses considerable potential, which makes her a target for hardliners within her world who seek to exploit her abilities. She is described as a failed student with great promise, suggesting that her true capabilities have not yet been fully realized. Mayuka’s role in the story is that of a supporting fighter who, despite her reluctance, participates in battles against the forces of Uroboros. Her personality is marked by a gentle and caring nature; she values loyalty and trust in her relationships with her comrades. Over the course of the series, she gradually gains more confidence as she bonds with her team and learns to trust in herself and her powers.

Mayuka is a teenage girl with very long purple hair and green eyes. Her notable abilities as a soldier are tied to her combat skills, though specific details about her powers are limited in the available information. Her development involves overcoming her laziness and insecurity to become a more reliable member of her group. Key relationships include her sister Ageha, who serves as both a disciplinarian and a source of guidance, as well as other Progress characters she fights alongside. Mayuka’s motivations are primarily driven by her sense of duty and her desire to support her friends, even if she initially resists the effort required.