Mia Sutton

Light's classmate and girlfriend, who assists him in his world-wide massacre of criminals as the god-like vigilante: "Kira", eventually seeking to kill those who seek to stop them and becoming dangerously obsessed with the book's power. In an interview with io9, Adam Wingard revealed that rather than being based on original manga character Misa Amane, Sutton as a character is based on the sociopathic qualities of Light Yagami, thus making her an original character.