I have an idea that would make things even easier. We all know that speaking Japanese is 500 times easier than reading Japanese. So I would suggest you simply learn to speak Japanese, then fly to Japan with that image and ask people on the street to read it to you.
Come to think of it, the simplest thing to do would be to track down the original creator, who presumably would be able to read it, having written it.
I'll try to think of more helpful ideas later.