While the Hinata girls panic over Keitaro and Naru's absence, a news report from Kyoto shocks them—Keitaro's been spotted! As they scramble to find him, Keitaro and Naru encounter a mysterious woman who's failed her university exams, and things get unexpectedly romantic.

Motoko, struggling with her feelings for Keitaro, is warned by her sister Tsuruko that she's losing focus. Determined to return to her disciplined self, Motoko challenges Keitaro to a duel. But during the match, an exhausted Keitaro collapses into her arms...