The element of redemption plays a significant role in the demon slayers' journey as many of them seek redemption for past mistakes or sins by fighting against demons and protecting humanity. They believe that through their actions of fighting demons and saving people, they can atone for their past wrongdoings and find a sense of purpose and redemption in their lives. This theme adds depth to the character development and motivations of the demon slayers in their quest for redemption and justice.
