On their way home from prep school Keitaro, Shirai and Haitani have an unfortunate encounter with Motoko, who sends then flying. Naru informs Keitaro that he should be respectful of Motoko because her skills as a swordswoman are lethal. She spins an elaborate tale about Motoko's descent from a powerful group of fighers and exorcists.
Later, Motoko becomes uncharacteristically clumsy. She trips when startled by Kaolla, and is caught by Keitaro. She is angered by this physical contact, and confused. Could she be feeling love? She can't accept that, and challenges Keitaro to a duel, during which she collapses. While recovering, she is relieved to discover that the weakness and clumsiness she had felt was caused by a cold, and not by love.