Informational mini anime posted on the anime's official Twitter and HJ Bunko/HJ Novel's official YouTube channel.

In spite of their defeat, the remnant factions of the Taipingtao Revolution continue to resist, plunging China into a seemingly never-ending war. Moreover, the negative emotions left behind by the rebellion's massive death toll begin to form miasma—giving birth to malignant beings called the "wangliang." These creatures can possess humans and turn them into horrifying demons, thus bringing about more deaths and miasma and spinning a vicious cycle that inflicts further despair upon the land. As a countermeasure, the immortal deities known as the "Tianyuan" select certain individuals to be "Hunters." Accompanying them are the "Guizhan," specialists created by the Tianyuan who can absorb miasma and transform into demons themselves, acting as indispensable weapons against the wangliang. After a tragic accident involving an out-of-control Guizhan causes the disbandment of the Sixth Hunter Unit, the Tianyuan designate three promising Hunters—namely Ji Ying, Qiao Xun, and Yan Ding—to reform the group. However, for an unknown reason, the Tianyuan also appoint Xiao Ling—the young Guizhan responsible for the former unit's downfall—to fight alongside the trio. Despite growing tensions, the members of the revived team must settle their differences and collectively use their abilities to attain victory against the common enemy. [Written by MAL Rewrite]

When 20-year-old college student Haruto Amakawa dies in a traffic accident, he does not expect to wake up in an unfamiliar world in the body of a young boy named Rio. As their memories and personas fuse, Rio realizes that he now also possesses magical powers. He is relieved to find that his burning passion for revenge against his mother's murderers has not subsided, despite his newly changed identity. Not soon after, Rio comes across the kidnapped princess of the Bertram Kingdom and saves her without hesitation. To express his gratitude, the king grants him the opportunity to enroll in the Bertram Royal Academy. Believing this to be a new chapter in his life, he is excited to study at this prestigious academy, but life here proves to be difficult for him, a slum-dweller surrounded by the majestic children of nobles. [Written by MAL Rewrite]