Sakurano Yuki, the strongest underground fighter, also known as "Princess Burst Yuki," is a hard worker who supports her family (or people like them) at the orphanage where she grew up with the money she earns from fighting. Then, she is discovered by the legendary "King" of the industry. For the sake of her family (or people like her) at the orphanage, and above all to become the strongest, Yuki faces King in a match. However... "You screwed me."