Jun explained to me that the kanji 南国 implies the islands that are along the equator or close to it. I found this Kit Kat at a Toys R Us and I was actually a little excited to see a new flavor. I did not end up buying it as the thought of mango and chocolate seems like a terrible idea, so we will never know if this exotic Kit Kat was worth anything. Alas.
My previous Kit Kat related post can be found here.