Webas the battle progresses, tanjiro suddenly collapses, and his wound begins to form a large mass over his right eye due to the poison inflicted on him by muzan. Webafter tanjiro and the remaining demon slayers were successfully able to keep muzan at bay in the sunlight, it appears he is finally defeated as his body. Webtanjiro goes on a quest to restore the humanity of his sister, nezuko, who was turned into a demon after his family was killed by muzan kibutsuji following an attack that resulted in. Webtanjiro and nezuko seem to have had peaceful lives after muzan's defeat, able to raise families. Tanjiro, of course, did suffer massive injuries in the final battle. Tanjiro is left blind in one eye and unable to feel his arm below the elbow, rendering his. Webwhile most fans think it to be a consequence of the demon slayer mark, a recent fan theory has put up another point apart from the demon slayer mark. 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.
