those chinese are complete madmen, i even saw an isekai game setting reincarnation story with investing >< (pretty nice story btw if one can stand the extrem slow burn of the fantasy setting :X) and if you think of japanese the power of investing was already something since that anime about people using spiritual monsters made of the value of their future in a behind the curtain dimension that had influence on company in the real world ^^I guess it was a matter of time to have an investing hentai game...?
so i'm not sure it's the first porn game with investement trope (maybe only the first around though ^^ don't remember seeing one)
edit: fuck it was a korean story not chinese, but those asian are still complete madmen with some of their setting (not sure what actual asian, mostly chinese/korean/japanese would think of most of the writter of novel in their country ><)