Himiko Toga is a young woman of 15 years, with a petite and slender build, standing at about 157 cm (5 feet 2 inches) tall. She has ash-blonde hair styled into two messy buns and yellow, cat-like eyes. Her superpower/"quirk" is Transform, which allows her to take on the appearance of anyone whose blood she consumes. Toga has a cheerful yet twisted demeanor, often displaying a playful and obsessive fascination with those she admires, coupled with a violent and unpredictable nature.