Webwhile not an outright confirmation that tanjiro made it past 25, it does heavily imply he survived long enough after his battle with muzan to grow old and father a. Webdemon slayer's manga ending reveals the ultimate fates of tanjiro and nezuko, although some reading between the lines is necessary to get it all. Webfrom a young boy who had everything taken from him to a demon slayer with admirable skills and conviction, each change in the scar sets a milestone for tanjiro. Webwhy does the demon slayer mark change? The key to this answer is tanjiro himself. The demon slayer mark can develop and resonate. Webafter months of hellish training and a gruesome exam, tanjiro joined the demon slayer corps hoping to meet powerful demons that could help him find a way to. Webthe revelation of tanjiro's father's connection to muzan kibutsuji has sent shockwaves through the ranks of the demon slayer corps, reshaping the organization's. Webthe revelation of this ancient order, dedicated to eradicating demons and safeguarding humanity, ignites a spark within tanjiro's soul, propelling him toward a.