Tanjiro, Zenitsu, and Inosuke go on their first mission together and venture to Mount Natagumo. Too afraid to go up the "spooky mountain" with Tanjiro and Inosuke, Zenitsu stays behind. Tanjiro and Inosuke encounter a mountain laced with spider webs and controlled by Spider Demons. These Demons have already dispatched countless Demon Slayers, forcing Kagaya to send in the Hashira as reinforcements.

Since ancient times, rumors have abounded of man-eating Demons lurking in the woods. Because of this, the local townsfolk never venture outside at night. Legend has it that a Demon Slayer also roams the night, hunting down these bloodthirsty Demons. For young Tanjiro Kamado, these rumors will soon to become his harsh reality. Ever since the death of his father, Tanjiro has taken it upon himself to support his family. Although their lives may be hardened by tragedy, they've found happiness. But that ephemeral warmth is shattered one day when Tanjiro finds his family slaughtered and the lone survivor, his sister Nezuko Kamado, turned into a Demon. To his surprise, however, Nezuko still shows signs of human emotion and thought. Thus begins Tanjiro's journey to seek out the Demon who killed their family and turn his sister human again.

Chibi Maruko-chan is a shōjo manga series written and illustrated by Momoko Sakura. The series depicts the simple, everyday life of Momoko Sakura, a young girl everyone calls Maruko, and her family in suburban Japan in the year 1974.