kny assassin au!

y'all I have story why nezuko is a assassin and tanjiro is a spy: the story starts where nezuko got kidnapped and ran away and nezuko found a house so she lives in there and her doorbell rings and a letter came she reads it said 'join the assassin girl group' so nezuko joined. for tanjiro:he got a letter it said 'join the spy group' so he joined hoping he will find nezuko