Dog (EntityClass, 4)
From Compile Worlds
They say a dog is a man's best friend (I see Keiji is clearly not a man, then). That still doesn't explain why some strays still keep biting passers-by all the time, though.
These guys and cats have been in a long-time dispute for a while now, with few exceptions. But, considering the comparisons between their wiles, the cats have been overtaking these guys more often than not. That doesn't really stop people from relying on dogs alone, though. Or maybe it's because of that; cats are known to be on their high seats too often, y'know?