Have you heard of ninjya/忍者? The ninja are a group of secret agents that were active in feudal Japan between the Kamakura and Edo Periods. If you are interested in finding more information, please see the Wikipedia link below.
A while back, some photos shared on Facebook made me wonder how popular ninjas were worldwide. First, the first picture caught my eyes since the caption "Back off, man, I have ninjas" was very impressive. I wondered who had first added the caption to the picture of a white cat surrounded by four black cats. I had no way to know it, but I found that the original poster on Facebook is a Spanish speaking person. The picture was shared by many people there. I was a little surprised by the fact that a lot of people worldwide can understand the image of ninjas.
I thought that ninjas were more popular than I expected.
The next day, my friend shared an interesting picture which describes how non-Japanese people think of Japan. Please see the second picture. The picture is so funny and true that it's also shared by many people on Facebook. When I first saw the picture, I understood what it intended to convey. However, I didn't expect ninjas to be used to describe Japan. Then, I also shared this picture on Facebook to see the responses to it. I've received some interesting comments.