We have another piece from ALiCE'S EMOTiON (man, those small I's tick me off when I type their circle name), it's indeed an arrange of Orin's theme. Gotta admit that REDALiCE did a funny arrange and it doesn't get better until Ayumi-san enters the stage. Pretty catchy, funny at the same time, which by the way sort of... perfectly fits Orin's personality.

Heh, clever title. Reminds me of Tom and Jerry.