This is a line from Deathnote, and I forget which volume and episode. It's a line Ryuzaki aka L says that I really really love. I think it's hilarious. So, I decided to put it on an avatar which I liked. I think it came out pretty good. X3
The picture of the cake is from [link]
The words are from Tsugumi Ohba, specifically Deathnote, specifically Ryuzaki aka L.