This book will further continue the world view with a very high mortality rate. The difficulty of survival for Tanjiro and others will be further increased. The secrets hidden behind the demon king Muzan and a mysterious organization that has existed for a thousand years will be revealed. The story takes place in the second week of the original plot. Li Qingming enters the world of Demon Slayer and obtains the Infinite Achievement System. While killing evil demons along the way, he is also pursuing his inner desires. When making a decision, power and humanity will eventually make a choice.

Lin Yan traveled through time and space in the blink of an eye. He traveled to the world of Demon Slayer, to the body of a dying beggar. The wind was freezing cold, and Lin Yan had no strength at all. He could only huddle in a corner, feeling the vitality in his body gradually disappearing in despair. As a traveler, he even had the golden finger [a system that can make you stronger by eating], but he had no chance to use it. After all, the reason why he fell into such a situation was because he had nothing to eat. At this moment, a pair of slightly immature hands full of wounds pulled Lin Yan up.