This is an era where aliens and earthlings live together. Under the oppression and rule of alien immigrants, the Bushido spirit that has been passed down for a hundred years has declined. However, in the face of a decadent trend, there is still a group of people who silently abide by their principles and justice. The young man Shimura Shinpachi (played by Masaki Suda), who has fallen from power, met the owner of Yorozuya, Sakata Gintoki (played by Shun Oguri) and the celestial girl Kagura (played by Kanna Hashimoto) in an accident, and the three became friends. Their mutual friend Katsura Kotaro (played by Masaki Okada) disappeared for no reason. After investigation, a man named Okada Shizang (played by Hirofumi Arai) and a demon sword named "Hongying" surfaced. Okada Shizang was a subordinate of the former anti-foreign patriot Takasugi Shinsuke (played by Tsuyoshi Domoto). Takasugi hated this fallen world and had always tried to destroy it. As the power of Hongying became stronger and stronger, the entire Oedo was shrouded in increasingly heavy clouds.