Y/ns dad is Tony stark. Y/n had been with their mother since they were a kid them being divorced they never saw their father after. When they were 6 their mom left, the school didnt find out until y/n was 16 that they had been living on their own, social services were called and she then moved in with tony. This is her just now arriving.She had never built a bond with her dad because of the situation. Stark is also now married to pepper.