Sayo Aisaka is the supporting character of Negima!. The 1st student in Japanese alphabetical order of class 2/3-A, she is the hapless and meek ghost of a former student, occasionally accompanied by a pair of hitodama. More often frightened than frightening, she is invisible to virtually everyone, and her presence goes mostly unnoticed (though Professor Takahata had her included in Negi's class registry, with a note not to change her seat). Eventually, she does get noticed by her teacher Negi Springfield and most of her classmates and becomes a friend and ally in his