At the tender age of 13, Youka was a spirited young lad. One day, his Uncle Kakusei introduced him to the art of Zenshinkyou and encouraged him to follow in his footsteps of martial arts. However, a series of ill-treatment led Youka to flee from Zenshinkyou. In his quest for sanctuary, he chanced upon a Forbidden Tomb where he discovered a striking damsel named Shouryuujo. Soon enough, he was welcomed into her circle to learn the Koboha techniques, and this marked the beginning of their alluring tale of martial arts and romance.