QUOTE(lovelylip @ Aug 10 2007, 11:57 PM)

To K3 visa take long time than take K1 visa?
I am Japanese, and my fiance is American ( he has American citizenship).
K3 visas are for married people. You don't qualify, so yes a K3 would take longer because you would need to marry first. Your question has nothing to do with IMBRA.