I suspect that Mervin is very tied to his Canadian citizenship, since he was born here, has always lived and trained here, and has a serious girlfriend in Montreal. He might, though, be willing to give it up temporarily, since he could probably get it back fairly easily. Narumi has lived and trained in Canada for quite a few years, so she has had residency for a long time. Her application for Canadian citizenship could probably be expedited. As I understand it, the problem is that if she gave up her Japanese citizenship (as Japan would require her to do, since they do not permit dual citizenship), it would be very hard to get back. She may not be willing to do that.