"My name is Baja. That's what everyone calls me, so it's probably Baja. I came here from the outside world when I was little. As for what happened when I was born, I don't remember much of it." Kohata Anime Studio is a place full of dreams where animation is made. Baja was raised in this studio by the people who create animation. Floating in a pond outside is his friend the duck. Baja enjoys a fun and blissful daily life. One night, when all the people are no longer at the studio, Baja takes a peek outside and finds that his duck friend is being attacked by a cat. Will Baja be able to save his friend? A wondrous night adventure begins!

The stage is the close of the Edo period, an age when, not unlike our own time, both natural and man-made disasters left chaos in their wake. Manjiro makes a living helping the people of the troubled capital city, but behind the scenes, he also works in secret to take back precious belongings stolen from the people by unjust political powers and conspiratorial menaces. The people call him "Get-backer Roman."

A messenger of the Heavens has arrived in Zhao Ge, which has been ruled by the Shang dynasty for generations. The current emperor, Zi Zhou, refuses to bow his head before the gods, and declares to the messenger that he will no longer accept the tyranny of the Heavens. The gods do not take this kindly; and soon, the emperor of a neighboring land, Wu Jifa, leads a crusade against the rebelling Shang. During the battle, the Shang forces are vastly overwhelmed, and just when the capital is inches away from being taken, Zhou joins the fight. Although he breaks through the enemy ranks and makes his way toward Jifa, out of nowhere a god falls from the sky, landing right before him, prepared to personally deal with the troublemaker.

At the end of the Shang dynasty of ancient China, Emperor Shou defied the will of the Gods. He openly declared to lead the people and to resist against the gods. Zi Shou bravely fought against Tian Kui, but only received laughter from the gods watching from above. He was then killed by Tian (another greater god) and broke the Immortal Phoenix armor. Wu Geng then woke up in the body of Ah Gou and realized he has now a wife named Bai Cai...