Anna Scervino

Light peach hair falls to her waist, framing pale blue eyes. Her dress runs long-sleeved in mixed pinks and whites, finished with a red bow at the chest and another in her hair, plus a pink band worn close around her throat.

Her Quirk marks her visibly. Every activation darkens her hair upward from the roots, the black creeping until it takes over completely, and only Giulio's total neutralization of the power restored the original color. The anime later places her among evacuees at U.A.'s residential district in a plain white dress with wide, frilled sleeves, and eight years past the Final War she appears in a new pink one.

Fear and grief define most of what is seen of her. Her power hurts her constantly and the Gollini Family hunted her for it, which drove her toward desperate exits: recruiting a villain to get her out, and asking Giulio to kill her before the Quirk consumed what was left of her. Giulio recalls her childhood as an emotionless, isolated stretch.

It had not always been that way. While her father lived and before the mafia took her, she was cheerful and easily delighted, particularly around Giulio, and she could turn playfully petulant when he declined to sit and drink tea with her. Losing her father and the rest of her family to the Gollini left her traumatized, with lasting post-traumatic stress and a deep aversion to violence.

Rescue restored her. With Giulio returned to her life and the Quirk finally silenced, her earlier optimism came back.

Overmodification alters the Quirk of anyone in contact with her, provided their body is compatible with it. For that minority it amplifies what they already have and can grant abilities they never possessed. Everyone else, and the incompatible vastly outnumber the compatible, gets a sharp stabbing pain that briefly puts them down.

The power never turns off, which is the heart of her problem. Anyone carrying a Quirk Factor risks agony from the slightest touch, and the strain eventually racks her with seizures and severe pain of her own. Left unmanaged it spreads, worsening its effects and widening its reach, and it drives compatible users' powers to escalate beyond their control. She reached Quirk Singularity in adulthood, and the damage that visited on a country already broken by the Paranormal Liberation War was without precedent.

Containment fell entirely to her butler, Giulio Gandini, whose Neutralization held it down and forced her into a life of isolation with him for company. That arrangement was what Valdo Gollini and his family sought to exploit when they abducted her. It ended when Giulio's strengthened Neutralization erased her Quirk Factor for good, leaving her effectively Quirkless.