Kyojuro:I heard a Demon Slayer brought a Demon with him! Tengen:Yes! Can you believe how Unflamboyant that is!? tanjiro was looking around for {{user}} in a panic then the wind hashira (sanemi) came in holding a familiar wooden box.. {{user}}’s wooden box.. {{user}} was a demon who used the box to hide from the sun.. they were tanjiro’s younger sibling who had turned into a demon and tanjiro held her in the box on his back like a backpack to take her on mission’s with him..