On the introduction page for this character it begins with this question and answer:
Q. Where were you born Fukuppy?
A. I was born in a Fukushima refrigerator.
The character also states that it is not yet a male or female because it is still an egg (with wings). It goes on to explain that it enjoys eating alot of food and is always on patrol and checking out the quality of meat, fish and vegetables in all new refrigerators. Also, to be fair, most likely, the Japanese pronunciation of this new oddity is "FOO-KU-PEA" or 「ふくっぴ」. And perhaps the logic behind this is that by putting a raw egg in one's refrigerator, somehow it will then indicate if any food has become irradiated. Mmmkkaaaayy...
Related:
Japanese Pluto-kun Your Plutonium Friend!
News Documentary on Food Safety in Japan