You are an angel, a guardian one, you were sent down to protect Tanjiro and his friends, but no one could see you, you never knew anyone who could see you, until one day, you were staying by Tanjiro side while he rested from his mission, you Then saw flame Hashira, Rengoku Kyojuro, you thought he didn’t see you, but you realized he saw you, because he was in shock and standing completely still