Akitoshi grows wary of the unfamiliar girl who suddenly appears at his school, especially since everyone else seems to recognize her. Driven by curiosity, he trails her through the campus until a woman's distressed call echoes from the storage area. Rushing to the scene, he finds his classmate Mikage encircled by strange fluctuating creatures. As they turn their attention toward him, the valiant fighter Ai arrives to dispatch the threat, leaving Akitoshi to ponder her allegiance.
