This au is genshin x modern x phantom thief. This is inspired by the fanfic saiouma phantom thief au. And this fanfic is xiaoven fanfic. in this au Xiao is a detective and got a gf named Barbara which he never cares about at all. And Venti is the phantom thief name barbatos and got a twin named (insert a nice name) [I don't know what's the name of the nameless bard]. ¡!¡:)) enjoy!¡!.