Tanjirou and his friends engage in a fierce conflict with the demon family living on mount natagumo! while zenitsu is exposed to a kind of poison that turns the infected person into a spider, inosuke and tanjirou are cornered by the father demon that has changed its shell and reached a gigantic size, and the battle they entered does not seem to end at all. but when all hope is gone, a shadow appears next to them! Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.