渚 千夏

A friend of Kou and his former dormitory-mate. Cheerful and sporty, she often attempted to flirt with Kou. She seemingly disappeared after the events of Gray Christmas.
In truth, she has become a member of GOAT, the global anti-AI special forces team, and her personality has become considerably embittered by the event which she perceives as a betrayal by their former lecturers.

She pilots the Simulacrum "Crimson Lotus".
During her school days, she piloted the Simulacrum "Shadow Wolf 'RIN'".