In the midst of a battle, a blue sky beast is seized while a white sky beast manages to escape. Akai Nishinosuke warrants an arrest on Shinza for illegally building a fun-house. Though Seikichi Tamaya is accused of launching fireworks the previous night, Ginjiro deceives Akai by showing that Seikichi was just carrying his tools. While returning to his room, Seikichi meets Sora, who is fascinated with his display of fireworks. She requests that he must build a firework cannon that could reach to the moon.
江戸の外れで、青い獣と白い獣が死闘を展開していた。そこには、二匹の獣を捕らえようとする目付黒衣衆と、それを率いる鳥居耀蔵もいた。青い獣を討ち取った彼らだが、白い獣を取り逃がしてしまう。そのきっかけとなったのが、玉屋清吉の打ち上げた花火であった。次の朝、ソラと名乗る謎の少女が清吉の前に現れて…。
