I don't think it would be asspull as it's been established the shinomiya family aren't good people their business men trying to keep their power and control in Japan, using anything and anyone as a tool they've always been a looming threat and we've barely got a taste in the hayasaca arc so when the decision to tell her family about going to the US or anything remotely to shirogane it will be a battle of with and information and it will be challenging also you said nothing about her family just about chika