The story takes place twenty years after Makima's death. Chen Qi was an ordinary Devil Hunter, killing ordinary devils and living an ordinary life. But suddenly, memories that seemingly did not belong to him came flooding back: World War II, nuclear weapons, the Nazis, AIDS, dementia, the eruption of Mount Tambora... The fears that had been erased after being killed by Chainsaw Man returned to his mind. This also meant that the devils who had perished would return to the world. At the same time, a tall woman in a suit came before Chen Qi. Her lips parted slightly. "Would you like to be my dog?"
"Huh?!"