Motoko's older sister, Tsuruko, comes to bring her home to take over the family dojo. Desperate to escape that fate, Motoko pretends Keitaro is her fiancé. But the ruse backfires—Tsuruko shatters Motoko's prized sword and banishes her from their martial arts school. Devastated and directionless, Motoko must now decide where her heart truly lies.