I wonder if your friend can pronounce it. I have a friend named
Ryuu and it is quite difficult to say with the R being pronounced like a mixture of an R an L and a D (the D sound is the strongest) and the uu part is really short and also sounds a bit like an O. Almost impossible to pronounce it correctly when you don't know at least a bit of Japanese. It also must sound weird with an English last name. I like the meaning, though. How old was he when she changed the name ?