In Japan, some well-known soft drink companies try introducing new exotic flavors in the market. Last year, it was Pepsi Cucumber... yes, cucumber... I do not have a photo for that one, but you can find it here.
This summer, I could try what is by far the strangest Pepsi I have ever tried. Were anybody to ask me what is the most exotic soft drink flavor I have tried, my answer would be Pepsi Shiso. No second thoughts about that!!
Shiso is a common plant in Japan. The wikipedia article in here. It often comes with sushi. That was my only contact with shiso until I drank this...
The result is a refreshing soft drink which has a weird taste, but I could not say it is bad. I think I would try it again!