Age: 25
Birthday: November 11
Blood type: B
Height: 170 cm
BWH: 100-58-98

Daidouji is a "legendary senior" who has been repeating class at Hanzou Academy of her own accord despite passing the finals. She is a ninja who was two years junior to Rin. She vowed not to graduate until she defeated Rin. She is always followed by a black cat.