E-Rank Nobody? Try SSS

Her father sold his blood for three years to buy her awakening potion. Her wealthy classmates threw it into a fire. Desperate to save her dying mother, Sloane reached into the flames and swallowed the last few drops. Everyone mocked the worthless ash flickering in her palm, unaware it concealed an SSS-rank power. When her tormentors reach for her again, who will turn to ash?