Allow me to refer you to a highly relevant story:
Allow me to quote a couple highly relevant passages from said story:
"It's a type of character that doesn't exist much in Asian movies and television, and now it's what Asian women think Korean men are like," said Kim Ok Hyun, director of Star M, a major star management company in Seoul.
"But to tell you the truth," she said. "I still haven't met a real one who fits that description."
Some call it a fad. But Yoshimura -- whose latest blind date turned out to be a slightly paunchy Korean computer programmer -- says she is nevertheless digging in her extraordinarily high heels for the long run.
OP, what you have to realize is that in every ethnicity, in every culture, you'll find people that are all different - both on the outside and the inside. If you're looking for someone like Nishijima, who must be Japanese, then you're going to be looking for a long time.
I suggest that you stop fantasizing about Nishijima, and worse yet, extending that fantasy to all Japanese men, and go out and meet people around you. Because really, unless you actually meet the real Nishijima one day and manage to get him to fall in love with you, your fantasy is going to be left unfulfilled, and you're going to become a lonely, bitter girl as a result. And even if you do meet the real Nishijima, I'd suggest to you that he's probably different from what you believe him to be. Sorry, but that's just the truth about fantasies.