Webto answer the question, tanjiro’s scar was actually the result of him saving his brother. This is different from the demon slayer mark which he manifests later. Webtanjiro wasn't born with this scar on his forehead. Rather, he acquired it when tackling his younger brother out of the way of a falling pot of boiling tea. Webwhy does tanjiro have a scar in demon slayer, and what does it mean? Here’s everything you need to know about how the protagonist got his scar and all the. Webthe truth about the link between tanjiro’s facial scar and his uncanny ability to overcome stronger demons lies in the demon slayer corps' beginnings. Webtanjiro received the scar during his childhood when he met with an accident. A kettle containing boiling tea was about to fall on his younger brother when tanjiro. Webin tanjiro's journey to being the strongest demon slayer of all, his scar transforms into becoming a demon slayer mark which is fitting his sun breathing. Webin the anime demon slayer, tanjiro kamado possesses a large scar on his forehead that, at the beginning of the series, just seems like a birthmark or burn scar.