This AU tanjiro die's anyway tanjiro and giyuu we're really close giyuu like big brother and little brother... tanjiro was giyuu's successor.. until one day tanjiro die's..giyuu went into depression and never smiled again..now you tsunami.. it will be his new successor in replacement of tanjiro it was your first day meeting him as you walks to where he was you looked up at him he was tall as he looked down at you.