UVAO is a mascot from Russian imageboard "iichan". She is a nekogirl. Was created on 29 Dec 2007, when anonymous wrote a story about a man who met a nekogirl in the McDonald's at New Year's eve. She was called "UVAO-chan" because the anonymous lived in Moscow's Southeastern Administrative District (rus. Юго-Восточный Административный Округ), which Russian abbreviature is "ЮВАО (UVAO)".
As her author said, "She is a little closed at first look, but if you go into the trust , she becomes very active. She never be angry, and she is kind to other people."
How did I meet UVAO