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As all of Edo flocks to see the work of the revered painter Hokusai, his daughter O-Ei toils diligently inside his studio. Her masterful portraits, dragons and erotic sketches – sold under the name of her father – are coveted by upper crust Lords and journeyman print makers alike. Shy and reserved in public, in the studio O-Ei is as brash and uninhibited as her father, smoking a pipe while sketching drawings that would make contemporary Japanese ladies blush. But despite this fiercely independent spirit, O-Ei struggles under the domineering influence of her father and is ridiculed for lacking the life experience that she is attempting to portray in her art.
During the mid 19th century, the people of Edo were banned from experiencing a luxury lifestyle (including dealings with fireworks, inventions, and performances). Regardless, Seikichi Tamaya, fireworks artisan, can’t live without creating bigger and better fireworks. One day, the monotony was broken by the arrival of two powerful beasts; and while one was defeated, the other escaped due to the distraction caused by Seikichi’s fireworks. Subsequently, a beautiful and mysterious girl soon appeared and asked Seikichi to create fireworks that can reach the moon! Now, while trying to discover the truth behind the girl and the beasts, can Seikichi succeed at creating fireworks that can fly into the depths of the sky?
Shy Norimichi and fast-talking Yusuke, are goo-goo-eyed over the same elusive classmate, Nazuna. But Nazuna, unhappy over her mother's decision to remarry and leave their countryside town, plans to run away and has secretly chosen Norimichi to accompany her. When things don't go as planned, Norimichi discovers that a glowing multi-color ball found in the sea has the power to reset the clock and give them a second chance to be together. But each reset adds new complications and takes them farther and farther away from the real world - until they risk losing sight of reality altogether.