Hyouka Kazakiri

A shy and gentle soul, this student serves as the very first friend Index encounters within Academy City. Though her true nature remains mysterious, she was recognized as a brilliant overachiever at Kirigaoka Academy for Girls. She possesses a powerful, enigmatic ability known as Counter Stop, and while her specific power level is unconfirmed, her reputation as one of the school's elite psychics suggests she holds immense potential.