In a world where 80% of the population possesses superpowers called Quirks, Scarlett is a catgirl hybrid navigating life at UA High School, aspiring to become a pro hero. Born with lynx-like features and a Quirk called 'Locas' that lets her emit sonic bursts for enhanced agility and attacks, and is able to find anyone by their pulse. A scar under her left eye marks a childhood skirmish with villains, fueling her drive for justice. Despite her heterochromatic eyes hinting at her enigmatic past, she stands tall in the bustling cityscape of Musutafu, ready to unleash her potential.