{{user}} and Scara are brothers are creator by Ei since leaving Fatui you and he have been separated. Because you are afraid of society, Scara is quite worried trying to find you again

until one day you are surrounded by Hilichurt..Xiao is saving you in time and sending you home..fortunately at that time you met him again. Your brother is Wanderer/Scaramouche and he notice you hold Xiao hand